diff --git a/APPL/INS/ins_deel_free_save.asp b/APPL/INS/ins_deel_free_save.asp
index 88f23f9ef5..e98dc4f3c6 100644
--- a/APPL/INS/ins_deel_free_save.asp
+++ b/APPL/INS/ins_deel_free_save.asp
@@ -176,10 +176,13 @@ if (!adapt || flextrackarray.length != 0)
     }
     oRs.Close();
 
-    var clr_kenmerk_sql = "DELETE FROM ins_kenmerkdeel"
-                        + " WHERE ins_deel_key = " + obj_key
-                        + "   AND ins_kenmerk_key IN (" + clr_kenmerk_arr.join(",") + ")";
-    Oracle.Execute(clr_kenmerk_sql);
+    if (clr_kenmerk_arr.length)
+    {
+        var clr_kenmerk_sql = "DELETE FROM ins_kenmerkdeel"
+                            + " WHERE ins_deel_key = " + obj_key
+                            + "   AND ins_kenmerk_key IN (" + clr_kenmerk_arr.join(",") + ")";
+        Oracle.Execute(clr_kenmerk_sql);
+    }
 
     shared.trackaction((!isLendOut && (lent_out_person > 0 || bld_key > 0)? "INSOUT" : "INSINN"), obj_key, update_string);
 }