diff --git a/src/msw/makefile.g95 b/src/msw/makefile.g95
index 1460078be1..8007666ac0 100644
--- a/src/msw/makefile.g95
+++ b/src/msw/makefile.g95
@@ -563,6 +563,14 @@ $(COMMDIR)/y_tab.c:     $(COMMDIR)/dosyacc.c
 $(COMMDIR)/lex_yy.c:    $(COMMDIR)/doslex.c
 	$(COPY) ../common/doslex.c ../common/lex_yy.c
 
+
+#
+# NOTE: by default, you don't need to run $(LEX) and $(YACC)
+# to rebuild lex_yy.c and y_tab.c, since these will be copied
+# from the doslex.c and dosyacc.c files. So, normally you
+# don't need to uncomment the following lines.
+#
+#
 # Replace lex with flex if you run into compilation
 # problems with lex_yy.c. See also note about LEX_SCANNER
 # above.