1 files changed, 4 insertions, 1 deletions
diff --git a/src/oid.c b/src/oid.c
index 1bf74b963..474129b58 100644
--- a/src/oid.c
+++ b/src/oid.c
@@ -95,11 +95,14 @@ char *git_oid_tostr(char *out, size_t n, const git_oid *oid)
 {
 	char str[GIT_OID_HEXSZ];
 
-	if (!out || n == 0 || !oid)
+	if (!out || n == 0)
 		return "";
 
 	n--; /* allow room for terminating NUL */
 
+	if (oid == NULL)
+		n = 0;
+
 	if (n > 0) {
 		git_oid_fmt(str, oid);
 		if (n > GIT_OID_HEXSZ)