diff --git a/dom/public/Makefile.in b/dom/public/Makefile.in
index 9999f4725093..1aeb8833b35d 100644
--- a/dom/public/Makefile.in
+++ b/dom/public/Makefile.in
@@ -22,7 +22,7 @@ VPATH		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
-DIRS = base coreDom coreEvents events html css
+DIRS = base coreDom coreEvents range events html css
 
 DEFINES += -D_IMPL_NS_DOM
  
diff --git a/dom/public/makefile.win b/dom/public/makefile.win
index 63921f9fbea3..c07a90a995b2 100644
--- a/dom/public/makefile.win
+++ b/dom/public/makefile.win
@@ -18,7 +18,7 @@
 DEPTH=..\..
 IGNORE_MANIFEST=1
 
-DIRS=base coreDom coreEvents events html css
+DIRS=base coreDom coreEvents range events html css
 DEFINES=-D_IMPL_NS_DOM 
 EXPORTS=nsIScriptContext.h 		\
 	nsIJSScriptObject.h 		\