diff --git a/gnubiff/src/Makefile.in b/gnubiff/src/Makefile.in
index cd34d35..83e2b50 100644
--- a/gnubiff/src/Makefile.in
+++ b/gnubiff/src/Makefile.in
@@ -329,7 +329,7 @@ common_sources = \
 
 gnubiff_SOURCES = $(common_sources) $(am__append_1)
 gnubiff_LDADD = $(INTLLIBS) $(GNUBIFF_DEP_LIBS) $(FAM_LIBS) \
-	$(am__append_2)
+	$(am__append_2) -lX11
 serverdir = $(libdir)/bonobo/servers
 server_in_files = $(am__append_3)
 server_DATA = $(am__append_4)