diff --git a/controller/hk_sql_utils.anubis b/controller/hk_sql_utils.anubis
index a3cc7ca..00d330b 100644
--- a/controller/hk_sql_utils.anubis
+++ b/controller/hk_sql_utils.anubis
@@ -38,15 +38,19 @@ public define Maybe(One)
     String          table_name,    
     List(Int)       ids
   )=
-  if sql_query_timeout(db,
-        "DELETE FROM "+table_name+
-        " WHERE id IN ("+join(", ", to_List_String(ids))+");",
-         [],
-        "delete_from_ids") is
-  {
-    error(_)    then failure,
-    ok(_, _, _) then success(unique)
-  }.
+  if length(ids) = 0 then 
+    success(unique)
+  else
+    if sql_query_timeout(db,
+          "DELETE FROM "+table_name+
+          " WHERE id IN ("+join(", ", to_List_String(ids))+");",
+           [],
+          "delete_from_ids") is
+    {
+      error(_)    then failure,
+      ok(_, _, _) then success(unique)
+    }
+  .
 
 public define Maybe(One)
   delete_by_clause
--
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