1 files changed, 1 insertions, 1 deletions
diff --git a/uid.c b/uid.c
index a0ea4a2e..bcce0d5d 100644
--- a/uid.c
+++ b/uid.c
@@ -222,7 +222,7 @@ void append_str_list(struct idlist **idl, struct idlist **nidl)
 	*idl = *nidl;
     else if ((*idl)->next == (struct idlist *)NULL)
 	(*idl)->next = *nidl;
-    else
+    else if ((*idl)->next != *nidl)
 	append_str_list(&(*idl)->next, nidl);
 }