diff --git a/mozilla/layout/base/src/Makefile.in b/mozilla/layout/base/src/Makefile.in
index e882bd0f2b0..f2d86317179 100644
--- a/mozilla/layout/base/src/Makefile.in
+++ b/mozilla/layout/base/src/Makefile.in
@@ -74,8 +74,6 @@ CPPSRCS		= \
 		nsTextNode.cpp \
 		nsXIFConverter.cpp \
 		nsLayoutHistoryState.cpp \
-		nsXMLContentSerializer.cpp \
-		nsHTMLContentSerializer.cpp \
 		$(NULL)
 
 EXPORTS		= \
diff --git a/mozilla/layout/base/src/makefile.win b/mozilla/layout/base/src/makefile.win
index 6a2644a0f72..70a95ef8985 100644
--- a/mozilla/layout/base/src/makefile.win
+++ b/mozilla/layout/base/src/makefile.win
@@ -72,8 +72,6 @@ CPPSRCS =				\
 	nsTextContentChangeData.cpp	\
 	nsTextNode.cpp			\
 	nsLayoutHistoryState.cpp	\
-	nsXMLContentSerializer.cpp	\
-	nsHTMLContentSerializer.cpp	\
 	$(NULL)
 
 MODULE=raptor 
@@ -124,8 +122,6 @@ CPP_OBJS=					\
 	.\$(OBJDIR)\nsTextContentChangeData.obj	\
 	.\$(OBJDIR)\nsTextNode.obj		\
 	.\$(OBJDIR)\nsLayoutHistoryState.obj	\
-	.\$(OBJDIR)\nsXMLContentSerializer.obj	\
-	.\$(OBJDIR)\nsHTMLContentSerializer.obj	\
 	$(NULL)
 
 LINCS=-I$(PUBLIC)\xpcom -I$(PUBLIC)\raptor \