diff --git a/mozilla/embedding/browser/gtk/src/Makefile.in b/mozilla/embedding/browser/gtk/src/Makefile.in
index 4a0f008484b..9dd127ec57f 100644
--- a/mozilla/embedding/browser/gtk/src/Makefile.in
+++ b/mozilla/embedding/browser/gtk/src/Makefile.in
@@ -26,7 +26,7 @@ VPATH		= @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 LIBRARY_NAME	= gtkembedmoz
-REQUIRES	= xpcom docshell webshell necko widget dom layout locale js uriloader webbrwsr shistory appshell embed_base xpconnect
+REQUIRES	= xpcom docshell webshell necko widget dom layout locale js uriloader webbrwsr shistory appshell embed_base xpconnect pref
 
 CPPSRCS		= \
 		GtkMozEmbedChrome.cpp \