diff --git a/daemon/control_tcp.c b/daemon/control_tcp.c
index 370154396..723b3a105 100644
--- a/daemon/control_tcp.c
+++ b/daemon/control_tcp.c
@@ -105,7 +105,7 @@ static int control_stream_parse(struct streambuf_stream *s, char *line) {
 		free(output);
 	}
 
-	pcre2_substring_list_free((PCRE2_SPTR *) out);
+	pcre2_substring_list_free((SUBSTRING_FREE_ARG) out);
 	pcre2_match_data_free(md);
 	log_info_pop();
 	return 1;
diff --git a/daemon/control_udp.c b/daemon/control_udp.c
index 1fd69f0c9..c3016710e 100644
--- a/daemon/control_udp.c
+++ b/daemon/control_udp.c
@@ -61,7 +61,7 @@ static void control_udp_incoming(struct obj *obj, struct udp_buffer *udp_buf) {
 
 		socket_sendiov(udp_buf->listener, iov, iovlen, &udp_buf->sin, &udp_buf->local_addr);
 
-		pcre2_substring_list_free((PCRE2_SPTR *) out);
+		pcre2_substring_list_free((SUBSTRING_FREE_ARG) out);
 		pcre2_match_data_free(md);
 
 		return;
@@ -130,7 +130,7 @@ static void control_udp_incoming(struct obj *obj, struct udp_buffer *udp_buf) {
 		cookie_cache_remove(&u->cookie_cache, &cookie);
 
 out:
-	pcre2_substring_list_free((PCRE2_SPTR *) out);
+	pcre2_substring_list_free((SUBSTRING_FREE_ARG) out);
 	pcre2_match_data_free(md);
 	log_info_pop();
 }
diff --git a/include/helpers.h b/include/helpers.h
index 91eebb6d0..045495333 100644
--- a/include/helpers.h
+++ b/include/helpers.h
@@ -36,6 +36,12 @@ int pcre2_multi_match(pcre2_code *, const char *, unsigned int, parse_func, void
 INLINE void strmove(char **, char **);
 INLINE void strdupfree(char **, const char *);
 
+#if PCRE2_MAJOR > 10 || (PCRE2_MAJOR == 10 && PCRE2_MINOR >= 43)
+#define SUBSTRING_FREE_ARG PCRE2_UCHAR **
+#else
+#define SUBSTRING_FREE_ARG PCRE2_SPTR *
+#endif
+
 
 
 /*** GLIB HELPERS ***/