diff --git a/src/osdp_cp.c b/src/osdp_cp.c
index 9dec4d8..cd82f5e 100644
--- a/src/osdp_cp.c
+++ b/src/osdp_cp.c
@@ -181,6 +181,8 @@ static inline void assert_buf_len(int need, int have)
 {
 	__ASSERT(need < have, "OOM at build command: need:%d have:%d",
 		 need, have);
+	(void)need;
+	(void)have;
 }
 
 static int cp_build_command(struct osdp_pd *pd, uint8_t *buf, int max_len)
diff --git a/src/osdp_pd.c b/src/osdp_pd.c
index 31582dc..fea0070 100644
--- a/src/osdp_pd.c
+++ b/src/osdp_pd.c
@@ -741,6 +741,8 @@ static inline void assert_buf_len(int need, int have)
 {
 	__ASSERT(need < have, "OOM at build command: need:%d have:%d",
 		 need, have);
+	(void)need;
+	(void)have;
 }
 
 /**