diff --git a/lib/connect.c b/lib/connect.c
index eca817c35..3225d70cf 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -1376,7 +1376,7 @@ CURLcode Curl_socket(struct connectdata *conn,
  */
 void Curl_conncontrol(struct connectdata *conn,
                       int ctrl /* see defines in header */
-#ifdef CURLDEBUG
+#ifdef DEBUGBUILD
                       , const char *reason
 #endif
   )
diff --git a/lib/connect.h b/lib/connect.h
index c3e43cf66..a7cbc9bc2 100644
--- a/lib/connect.h
+++ b/lib/connect.h
@@ -122,12 +122,12 @@ void Curl_tcpnodelay(struct connectdata *conn, curl_socket_t sockfd);
 
 void Curl_conncontrol(struct connectdata *conn,
                       int closeit
-#ifdef CURLDEBUG
+#ifdef DEBUGBUILD
                       , const char *reason
 #endif
   );
 
-#ifdef CURLDEBUG
+#ifdef DEBUGBUILD
 #define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM, y)
 #define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION, y)
 #define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP, y)