diff --git a/src/main.c b/src/main.c
index 3e3b70f..1df6c2f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -14,7 +14,10 @@
 
 void prog_info(FILE* out)
 {
-	fprintf(out, PROG_NAME " v%s - " PROG_DESCRIPTION 
+	fprintf(out, PROG_NAME " v%s - " PROG_DESCRIPTION
+#ifdef DEBUG
+	" (debug build)"
+#endif
 		"\n written by %s with <3 (compiled at %lu UTC (unix ts))\n  license %s.\n", 
 			v_ctoss(v_rawtoc(PROG_VERSION)),
 			PROG_AUTHOUR,