diff --git a/daemon/main.c b/daemon/main.c
index 16b43b0a9..9c4d71e73 100644
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -974,7 +974,7 @@ static void options(int *argc, char ***argv) {
 	if (amr_dtx) {
 		if (!strcasecmp(amr_dtx, "native")) {}
 		else if (!strcasecmp(amr_dtx, "CN"))
-			rtpe_config.amr_cn_dtx = 1;
+			rtpe_config.amr_cn_dtx = true;
 		else
 			die("Invalid --amr-dtx ('%s')", amr_dtx);
 	}
diff --git a/include/main.h b/include/main.h
index 2f4a743d3..a7999f39f 100644
--- a/include/main.h
+++ b/include/main.h
@@ -146,7 +146,7 @@ struct rtpengine_config {
 	int			dtx_lag;
 	int			dtx_shift;
 	str			dtx_cn_params;
-	int			amr_cn_dtx;
+	bool			amr_cn_dtx;
 	double			silence_detect_double;
 	uint32_t		silence_detect_int;
 	str			cn_payload;