diff --git a/mozilla/layout/html/base/src/makefile.win b/mozilla/layout/html/base/src/makefile.win
index d6bfdaf6408..5ac1db8389e 100644
--- a/mozilla/layout/html/base/src/makefile.win
+++ b/mozilla/layout/html/base/src/makefile.win
@@ -27,6 +27,7 @@ DEFINES = $(DEFINES) -DXP_NEW_SELECTION
 
 CPPSRCS=				\
 	nsAbsoluteFrame.cpp		\
+	nsAreaFrame.cpp		\
 	nsBRFrame.cpp			\
 	nsBlockBandData.cpp		\
 	nsBlockFrame.cpp		\
@@ -65,6 +66,7 @@ CPPSRCS=				\
 
 CPP_OBJS=					\
 	.\$(OBJDIR)\nsAbsoluteFrame.obj		\
+	.\$(OBJDIR)\nsAreaFrame.obj		\
 	.\$(OBJDIR)\nsBRFrame.obj		\
 	.\$(OBJDIR)\nsBlockBandData.obj		\
 	.\$(OBJDIR)\nsBlockFrame.obj		\