--- Makefile.am
+++ Makefile.am
@@ -40,7 +40,7 @@
 BUILT_SOURCES = rec_parse.h rec_lex.h rec_lex.c
 AM_YFLAGS = -d
 
-xstroke_LDADD = @XSTROKE_LIBS@ -lm -lpthread $(X_LIBS) -lXpm -lXtst
+xstroke_LDADD = @XSTROKE_LIBS@ -lm -lpthread $(X_LIBS) -lXpm -lXtst -lX11 -lXrender -lXext -ldl
 AM_CFLAGS = @XSTROKE_CFLAGS@ -DXSTROKE_CONF_DIR='"$(sysconfdir)/xstroke"' $(X_CFLAGS)
 
 EXTRA_DIST = xstroke_active.xpm xstroke_inactive.xpm etc/alphabet