1 files changed, 1 insertions, 1 deletions
diff --git a/base64.c b/base64.c
index 0c33e5881b64..8b1da25dbde6 100644
--- a/base64.c
+++ b/base64.c
@@ -115,7 +115,7 @@ unsigned char * base64_decode(const unsigned char *src, size_t len,
 			count++;
 	}
 
-	if (count % 4)
+	if (count == 0 || count % 4)
 		return NULL;
 
 	olen = count / 4 * 3;