diff --git a/daemon/call.c b/daemon/call.c
index 316476f06..e0ee21055 100644
--- a/daemon/call.c
+++ b/daemon/call.c
@@ -294,7 +294,7 @@ void xmlrpc_kill_calls(void *p) {
 retry:
 			pid = waitpid(pid, &status, 0);
 			if ((pid > 0 && WIFEXITED(status) && WEXITSTATUS(status) == 0) || i >= 3) {
-				for (int i = 0; i < els_per_ent; i++)
+				for (int j = 0; j < els_per_ent; j++)
 					free(g_queue_pop_head(&xh->strings));
 				i = 0;
 			}
@@ -360,7 +360,7 @@ retry:
 		}
 
 		xmlrpc_client_destroy(c);
-		for (int i = 0; i < els_per_ent; i++)
+		for (int j = 0; j < els_per_ent; j++)
 			free(g_queue_pop_head(&xh->strings));
 		xmlrpc_env_clean(&e);
 
diff --git a/daemon/call_interfaces.c b/daemon/call_interfaces.c
index 9ca866316..fb7841be1 100644
--- a/daemon/call_interfaces.c
+++ b/daemon/call_interfaces.c
@@ -692,11 +692,11 @@ INLINE void ng_sdp_attr_manipulations(struct sdp_manipulations_common ** sm_ptr,
 					for (bencode_item_t *it_v = command_value->child; it_v; it_v = it_v->sibling)
 					{
 						/* detect command value */
-						str command_value;
-						if (!bencode_get_str(it_v, &command_value))
+						str child_value;
+						if (!bencode_get_str(it_v, &child_value))
 							continue;
 
-						str * s_copy = str_dup_escape(&command_value);
+						str * s_copy = str_dup_escape(&child_value);
 						g_queue_push_tail(q_ptr, s_copy);
 					}
 					break;
@@ -725,11 +725,11 @@ INLINE void ng_sdp_attr_manipulations(struct sdp_manipulations_common ** sm_ptr,
 					for (bencode_item_t *it_v = command_value->child; it_v; it_v = it_v->sibling)
 					{
 						/* detect command value */
-						str command_value;
-						if (!bencode_get_str(it_v, &command_value))
+						str child_value;
+						if (!bencode_get_str(it_v, &child_value))
 							continue;
 
-						str *s_copy = str_dup_escape(&command_value);
+						str *s_copy = str_dup_escape(&child_value);
 						g_hash_table_replace(*ht, s_copy, s_copy);
 					}
 					break;
@@ -1413,8 +1413,8 @@ static void call_ng_main_flags(struct sdp_ng_flags *out, str *key, bencode_item_
 			if (value->type != BENCODE_LIST)
 				break;
 			int diridx = 0;
-			for (bencode_item_t *it = value->child; it && diridx < 2; it = it->sibling)
-				bencode_get_str(it, &out->direction[diridx++]);
+			for (bencode_item_t *cit = value->child; cit && diridx < 2; cit = cit->sibling)
+				bencode_get_str(cit, &out->direction[diridx++]);
 			break;
 		case CSH_LOOKUP("sdp-attr"):
 		case CSH_LOOKUP("SDP-attr"):
@@ -2406,8 +2406,8 @@ static void ng_stats_ssrc(bencode_item_t *dict, struct ssrc_hash *ht) {
 			if (sb->reported.tv_sec < next_step)
 				continue;
 			next_step += interval;
-			bencode_item_t *ent = bencode_list_add_dictionary(entlist);
-			ng_stats_ssrc_mos_entry(ent, sb);
+			bencode_item_t *cent = bencode_list_add_dictionary(entlist);
+			ng_stats_ssrc_mos_entry(cent, sb);
 		}
 	}
 
@@ -2454,8 +2454,8 @@ stats:
 		ml = call_get_monologue(call, match_tag);
 		if (ml) {
 			ng_stats_monologue(tags, ml, totals, ssrc);
-			for (GList *l = ml->subscriptions.head; l; l = l->next) {
-				struct call_subscription *cs = l->data;
+			for (GList *k = ml->subscriptions.head; k; k = k->next) {
+				struct call_subscription *cs = k->data;
 				ng_stats_monologue(tags, cs->monologue, totals, ssrc);
 			}
 		}
@@ -2724,11 +2724,11 @@ static const char *media_block_match_mult(struct call **call, GQueue *mls,
 	// handle from-tag list
 	for (GList *l = flags->from_tags.head; l; l = l->next) {
 		str *s = l->data;
-		struct call_monologue *ml = call_get_monologue(*call, s);
-		if (!ml)
+		struct call_monologue *mlf = call_get_monologue(*call, s);
+		if (!mlf)
 			ilog(LOG_WARN, "Given from-tag " STR_FORMAT_M " not found", STR_FMT_M(s));
 		else
-			add_ml_to_sub_list(mls, ml);
+			add_ml_to_sub_list(mls, mlf);
 	}
 
 	if (!mls->length)
diff --git a/daemon/codec.c b/daemon/codec.c
index 3884f335b..f2699c4ac 100644
--- a/daemon/codec.c
+++ b/daemon/codec.c
@@ -2495,11 +2495,11 @@ static int handler_func_passthrough_ssrc(struct codec_handler *h, struct media_p
 	if (h->dtmf_payload_type != -1) {
 		struct codec_ssrc_handler *ch = get_ssrc(mp->ssrc_in->parent->h.ssrc, h->ssrc_hash);
 		if (ch) {
-			uint64_t ts = ntohl(mp->rtp->timestamp);
+			uint64_t ts64 = ntohl(mp->rtp->timestamp);
 
 			str ev_pl = { .s = buf + sizeof(*mp->rtp) };
 
-			int is_dtmf = dtmf_event_payload(&ev_pl, &ts,
+			int is_dtmf = dtmf_event_payload(&ev_pl, &ts64,
 					(uint64_t) h->source_pt.clock_rate * h->source_pt.ptime / 1000,
 					&ch->dtmf_event, &ch->dtmf_events);
 			if (is_dtmf) {
@@ -2507,7 +2507,7 @@ static int handler_func_passthrough_ssrc(struct codec_handler *h, struct media_p
 				struct rtp_header *r = (void *) buf;
 				*r = *mp->rtp;
 				r->m_pt = h->dtmf_payload_type;
-				r->timestamp = htonl(ts);
+				r->timestamp = htonl(ts64);
 				if (is_dtmf == 1)
 					r->m_pt |= 0x80;
 				else if (is_dtmf == 3) // end event
@@ -4977,8 +4977,8 @@ void codec_store_offer(struct codec_store *cs, GQueue *offer, struct codec_store
 					STR_FMT(codec));
 			continue;
 		}
-		for (GList *l = orig_list->head; l; l = l->next) {
-			int pt_num = GPOINTER_TO_INT(l->data);
+		for (GList *k = orig_list->head; k; k = k->next) {
+			int pt_num = GPOINTER_TO_INT(k->data);
 			struct rtp_payload_type *orig_pt = g_hash_table_lookup(orig->codecs,
 					GINT_TO_POINTER(pt_num));
 			if (!orig_pt) {
@@ -5188,8 +5188,8 @@ void codec_store_transcode(struct codec_store *cs, GQueue *offer, struct codec_s
 			continue;
 		}
 		// XXX duplicate code
-		for (GList *l = orig_list->head; l; l = l->next) {
-			int pt_num = GPOINTER_TO_INT(l->data);
+		for (GList *k = orig_list->head; k; k = k->next) {
+			int pt_num = GPOINTER_TO_INT(k->data);
 			struct rtp_payload_type *orig_pt = g_hash_table_lookup(orig->codecs,
 					GINT_TO_POINTER(pt_num));
 			if (!orig_pt) {
diff --git a/daemon/dtmf.c b/daemon/dtmf.c
index e660623c8..9c88d5162 100644
--- a/daemon/dtmf.c
+++ b/daemon/dtmf.c
@@ -58,8 +58,8 @@ static void dtmf_bencode_and_notify(struct call_media *media, unsigned int event
 
 	GList *tag_values = g_hash_table_get_values(call->tags);
 	for (GList *tag_it = tag_values; tag_it; tag_it = tag_it->next) {
-		struct call_monologue *ml = tag_it->data;
-		bencode_list_add_str(tags, &ml->tag);
+		struct call_monologue *tml = tag_it->data;
+		bencode_list_add_str(tags, &tml->tag);
 	}
 	g_list_free(tag_values);
 
@@ -97,11 +97,11 @@ static GString *dtmf_json_print(struct call_media *media, unsigned int event, un
 	GList *tag_values = g_hash_table_get_values(call->tags);
 	int i = 0;
 	for (GList *tag_it = tag_values; tag_it; tag_it = tag_it->next) {
-		struct call_monologue *ml = tag_it->data;
+		struct call_monologue *tml = tag_it->data;
 		if (i != 0)
 			g_string_append(buf, ",");
 		g_string_append_printf(buf, "\"" STR_FORMAT "\"",
-				STR_FMT(&ml->tag));
+				STR_FMT(&tml->tag));
 		i++;
 	}
 	g_list_free(tag_values);
diff --git a/daemon/poller.c b/daemon/poller.c
index e07b393ea..8a397dfe6 100644
--- a/daemon/poller.c
+++ b/daemon/poller.c
@@ -429,11 +429,11 @@ int poller_poll(struct poller *p, int timeout) {
 			ZERO(e);
 			e.events = epoll_events(NULL, it);
 			e.data.fd = it->item.fd;
-			int ret = epoll_ctl(p->fd, EPOLL_CTL_MOD, it->item.fd, &e);
+			int eret = epoll_ctl(p->fd, EPOLL_CTL_MOD, it->item.fd, &e);
 
 			mutex_unlock(&p->lock);
 
-			if (ret == 0 && it->item.writeable)
+			if (eret == 0 && it->item.writeable)
 				it->item.writeable(it->item.fd, it->item.obj, it->item.uintp);
 		}
 		else if ((ev->events & POLLIN))
diff --git a/daemon/sdp.c b/daemon/sdp.c
index 21f2a4cb3..ea80ee101 100644
--- a/daemon/sdp.c
+++ b/daemon/sdp.c
@@ -2146,8 +2146,8 @@ static void insert_codec_parameters(GString *s, struct call_media *cm) {
 					STR_FMT(&pt->format_parameters));
 		}
 
-		for (GList *l = pt->rtcp_fb.head; l; l = l->next) {
-			str *fb = l->data;
+		for (GList *k = pt->rtcp_fb.head; k; k = k->next) {
+			str *fb = k->data;
 			g_string_append_printf(s, "a=rtcp-fb:%u " STR_FORMAT "\r\n",
 					pt->payload_type,
 					STR_FMT(fb));
diff --git a/daemon/t38.c b/daemon/t38.c
index ee003e362..c8d76b85b 100644
--- a/daemon/t38.c
+++ b/daemon/t38.c
@@ -708,8 +708,8 @@ int t38_gateway_input_udptl(struct t38_gateway *tg, const str *buf) {
 					}
 
 					// XOR in packet
-					for (size_t j = 0; j < recp->s->len; j++)
-						rec_s->str[j] ^= recp->s->s[j];
+					for (size_t k = 0; k < recp->s->len; k++)
+						rec_s->str[k] ^= recp->s->s[k];
 				}
 
 				if (complete) {