1 files changed, 1 insertions, 1 deletions
diff --git a/dir.c b/dir.c
index 36cdadc0e9..59057b4908 100644
--- a/dir.c
+++ b/dir.c
@@ -2041,7 +2041,7 @@ ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
 	if (*p == '{' && nest++ == 0) {
 	    lbrace = p;
 	}
-	if (*p == '}' && --nest <= 0) {
+	if (*p == '}' && lbrace && --nest == 0) {
 	    rbrace = p;
 	    break;
 	}