1 files changed, 2 insertions, 2 deletions
diff --git a/convert.c b/convert.c
index 11a95fc8b5..cb5fbb45ea 100644
--- a/convert.c
+++ b/convert.c
@@ -1121,9 +1121,9 @@ static int is_foreign_ident(const char *str)
 {
 	int i;
 
-	if (prefixcmp(str, "$Id: "))
+	if (!skip_prefix(str, "$Id: ", &str))
 		return 0;
-	for (i = 5; str[i]; i++) {
+	for (i = 0; str[i]; i++) {
 		if (isspace(str[i]) && str[i+1] != '$')
 			return 1;
 	}