diff --git a/lib/Makefile.am b/lib/Makefile.am
index 5d2df8bffb..cd1ca97a54 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -155,7 +155,6 @@ optiontable:
 	perl optiontable.pl < $(top_srcdir)/include/curl/curl.h > easyoptions.c
 
 if OS_WINDOWS
-# Warning is "normal": libtool:   error: ignoring unknown tag RC
 .rc.lo:
 	$(LIBTOOL) --tag=RC --mode=compile $(RC) -I$(top_srcdir)/include $(RCFLAGS) -i $< -o $@
 endif
diff --git a/src/Makefile.am b/src/Makefile.am
index d9180b0b14..2c1886f5a8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -157,7 +157,6 @@ listhelp:
 	(cd $(top_srcdir)/docs/cmdline-opts && ./gen.pl listhelp *.d) > tool_listhelp.c
 
 if OS_WINDOWS
-# Warning is "normal": libtool:   error: ignoring unknown tag RC
 .rc.o:
-	$(LIBTOOL) --tag=RC --mode=compile $(RC) -I$(top_srcdir)/include -DCURL_EMBED_MANIFEST $(RCFLAGS) -i $< -o $@
+	$(RC) -I$(top_srcdir)/include -DCURL_EMBED_MANIFEST $(RCFLAGS) -i $< -o $@
 endif