1 files changed, 1 insertions, 0 deletions
diff --git a/bf.lang b/bf.lang
index 6f7426b..c42f73d 100644
--- a/bf.lang
+++ b/bf.lang
@@ -36,6 +36,7 @@ func int[] makejumpmap(char[] src, int srclen) {
 		i = i + 1;
 	}
 	if (stkp != 0) {
+		putstr("Unmatched opening brackets in BF source\n");
 		exit(1);
 	}
 	/*i = 0;