diff --git a/src/cw/capwap.h b/src/cw/capwap.h
index ed44bdab..fe25c456 100644
--- a/src/cw/capwap.h
+++ b/src/cw/capwap.h
@@ -626,7 +626,7 @@ extern struct cw_strlist_elem mbag_item_strings[];
 #define cw_strerror(rc) cw_strrc(rc)
 */
 
-static inline const char * cw_strerror(rc) {
+static inline const char * cw_strerror(int rc) {
 	if (rc<0){
 		if (errno==EAGAIN)
 			return "Timed out";
diff --git a/src/cw/dtls_openssl.c b/src/cw/dtls_openssl.c
index 979a2d4d..c840302e 100644
--- a/src/cw/dtls_openssl.c
+++ b/src/cw/dtls_openssl.c
@@ -72,9 +72,6 @@ static void dtls_debug_cb(int write_p,int version,int type, const void * buf,siz
 static void dtls_info_cb (const SSL *ssl, int where, int ret)
 {
 	const char *str = NULL;
-	int w;
-
-	w = where & ~SSL_ST_MASK;
 
 	str = where & SSL_ST_CONNECT ? "connect" : where & SSL_ST_ACCEPT ? "accept" : "undefined";
 	if (where & SSL_CB_LOOP)
diff --git a/src/cw/format_is_utf8.c b/src/cw/format_is_utf8.c
index b36ff7e1..724b508b 100644
--- a/src/cw/format_is_utf8.c
+++ b/src/cw/format_is_utf8.c
@@ -33,11 +33,9 @@
 int format_is_utf8(unsigned char *str, size_t len)
 {
 	size_t i = 0;
-	size_t j = 0;
 	size_t bytes = 0;
 
 	while (i < len) {
-		j = i;
 		if (str[i] < 0x20) {
 			return 0;
 		}