diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa
index e5f9e3dfde..338ded9d14 100644
--- a/src/arch/x86/isa/microops/regop.isa
+++ b/src/arch/x86/isa/microops/regop.isa
@@ -990,7 +990,7 @@ let {{
                 CCFlagBits flags = cfofBits;
                 uint64_t top = PSrcReg1 << realShiftAmt;
                 uint64_t bottom = flags.cf << (realShiftAmt - 1);
-                if(shiftAmt > 1) {
+                if(realShiftAmt > 1) {
                     bottom |= bits(PSrcReg1, dataSize * 8 - 1,
                             dataSize * 8 - realShiftAmt + 1);
                 }