diff --git a/compiler/options.pas b/compiler/options.pas
index 106073f6a3..8629761a55 100644
--- a/compiler/options.pas
+++ b/compiler/options.pas
@@ -1964,6 +1964,7 @@ begin
            'd' :
              begin
                l:=Pos(':=',more);
+               DefaultReplacements(more);
                if l>0 then
                  hs:=copy(more,1,l-1)
                else