diff --git a/libisofs/util.c b/libisofs/util.c
index 9104f95..16ff93c 100644
--- a/libisofs/util.c
+++ b/libisofs/util.c
@@ -2302,7 +2302,7 @@ int iso_clone_mem(char *in, char **out, size_t size)
     if (*out == NULL)
         return ISO_OUT_OF_MEM;
     memcpy(*out, in, size);
-    return 1;
+    return ISO_SUCCESS;
 }