diff --git a/src/www_files.c b/src/www_files.c
index 4f6cc17..59fd0b4 100644
--- a/src/www_files.c
+++ b/src/www_files.c
@@ -257,9 +257,9 @@ char *www_create_link(int dir, int sub, int fid) {
 
     sizereq = hashids_estimate_encoded_size_v(hashids, 4, gUser->id, dir, sub, fid);
 
-    hashid = (char *)malloc(sizereq);
+    hashid = (char *)malloc(sizereq + 1);
 
-    memset(hashid, 0, sizereq);
+    memset(hashid, 0, sizereq + 1);
 
     if (hashids_encode_v(hashids, hashid, 4, gUser->id, dir, sub, fid) == 0) {
         hashids_free(hashids);