diff --git a/compiler/x86_64/rax64att.pas b/compiler/x86_64/rax64att.pas
index a118373ef2..ef5affb3ad 100644
--- a/compiler/x86_64/rax64att.pas
+++ b/compiler/x86_64/rax64att.pas
@@ -48,9 +48,7 @@ Unit rax64att;
         BuildOpcode(instr);
         instr.AddReferenceSizes;
         instr.SetInstructionOpsize;
-        {
         instr.CheckOperandSizes;
-        }
         instr.ConcatInstruction(curlist);
         instr.Free;
       end;