diff --git a/compiler/ncgadd.pas b/compiler/ncgadd.pas
index 867280cb5b..f4236556bd 100644
--- a/compiler/ncgadd.pas
+++ b/compiler/ncgadd.pas
@@ -342,14 +342,14 @@ interface
       begin
         if nodetype<>addn then
           internalerror(20080302);
-        { setelementn is a special case, it must be on right }
-        if (nf_swapped in flags) and
-           (left.nodetype=setelementn) then
-          swapleftright;
         { no range support for smallsets }
         if assigned(tsetelementnode(right).right) then
           internalerror(20080303);
         pass_left_right;
+        { setelementn is a special case, it must be on right }
+        if (nf_swapped in flags) and
+           (left.nodetype=setelementn) then
+          swapleftright;
         force_reg_left_right(false,false);
         set_result_location_reg;
         setbase:=tsetdef(left.resultdef).setbase;