1 files changed, 1 insertions, 0 deletions
diff --git a/re.c b/re.c
index d4455c349b..642e9b86d0 100644
--- a/re.c
+++ b/re.c
@@ -725,6 +725,7 @@ reg_match(re, str)
 {
     int start;
 
+    if (NIL_P(str)) return FALSE;
     str = str_to_str(str);
     start = reg_search(re, str, 0, 0);
     if (start < 0) {