diff --git a/wmcliphist/Makefile b/wmcliphist/Makefile

index be3449d..17c7464 100644

--- a/wmcliphist/Makefile

+++ b/wmcliphist/Makefile

@@ -12,7 +12,7 @@ DEBUG =

 #CFLAGS += -Wall -g -ansi $(INCLUDES) -DFNCALL_DEBUG

 #DEBUG = debug.o

-LIBS = `pkg-config --libs gtk+-2.0`

+LIBS = `pkg-config --libs gtk+-2.0` -lX11

 OBJECTS = wmcliphist.o clipboard.o gui.o rcconfig.o history.o hotkeys.o utils.o $(DEBUG)

 TARGET = wmcliphist