diff --git a/rtl/x86_64/math.inc b/rtl/x86_64/math.inc
index fe8b8c975f..0e721206fc 100644
--- a/rtl/x86_64/math.inc
+++ b/rtl/x86_64/math.inc
@@ -301,8 +301,8 @@ const
             fld %st
             frndint
             fsubrp %st,%st(1)
-            fldcw oldcw
             fwait
+            fldcw oldcw
       end;
     {$endif FPC_SYSTEM_HAS_FRAC}