--- a/libopkg/pkg_hash.c
+++ b/libopkg/pkg_hash.c
@@ -367,6 +367,9 @@
      abstract_pkg_t *apkg = NULL;
      pkg_t *ret;
 
+     if (err)
+       *err = 0;
+
      if (!(apkg = abstract_pkg_fetch_by_name(hash, name)))
 	  return NULL;