diff --git a/mozilla/xpfe/components/prefwindow/src/Makefile.in b/mozilla/xpfe/components/prefwindow/src/Makefile.in
index 6e313316073..b5621e74ed3 100644
--- a/mozilla/xpfe/components/prefwindow/src/Makefile.in
+++ b/mozilla/xpfe/components/prefwindow/src/Makefile.in
@@ -22,8 +22,8 @@ srcdir		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
-MODULE=mozsampl
-LIBRARY_NAME=mozsampl
+MODULE=prefwindow
+LIBRARY_NAME=prefwindow
 IS_COMPONENT=1
 CPPSRCS= \
 		nsPrefWindow.cpp \
diff --git a/mozilla/xpfe/components/prefwindow/src/makefile.win b/mozilla/xpfe/components/prefwindow/src/makefile.win
index a2d1e822b69..8e00ee62a99 100644
--- a/mozilla/xpfe/components/prefwindow/src/makefile.win
+++ b/mozilla/xpfe/components/prefwindow/src/makefile.win
@@ -31,8 +31,8 @@ DEPTH = ..\..\..\..
 #//
 #//------------------------------------------------------------------------
 
-DLLNAME		= mozsampl
-DLL1NAME	= mozsampl
+DLLNAME		= prefwind
+DLL1NAME	= prefwind
 PDBFILE		= $(DLLNAME).pdb
 MAPFILE		= $(DLLNAME).map
 DLL		=.\$(OBJDIR)\$(DLLNAME).dll