diff --git a/packages/winunits-jedi/src/jwawinnt.pas b/packages/winunits-jedi/src/jwawinnt.pas
index 4446d3e11c..d66e5726fa 100644
--- a/packages/winunits-jedi/src/jwawinnt.pas
+++ b/packages/winunits-jedi/src/jwawinnt.pas
@@ -9020,7 +9020,7 @@ asm
         MOV     EAX, FS:[024]   // was zero        
 {$endif cpu386}
 {$ifdef cpux86_64}
-        movq     RAX, GS:[48]
+        mov     RAX, GS:[48]
 {$endif cpux86_64}
 end;
 {$ENDIF JWA_INCLUDEMODE}