diff --git a/cube-src/src/Makefile b/cube-src/src/Makefile

index 10b6056..489483a 100644

--- a/cube-src/src/Makefile

+++ b/cube-src/src/Makefile

@@ -2,7 +2,8 @@ CXX=g++

 CXXOPTFLAGS=-Wall -O3 -fsigned-char -fomit-frame-pointer

 CXXFLAGS=$(CXXOPTFLAGS) -I../enet/include `sdl-config --cflags`

-CLIENT_LIBS=-L../enet -lenet `sdl-config --libs` -lSDL_image -lSDL_mixer -lz -lGL -lGLU 

+CLIENT_LIBS=-L../enet -lenet `sdl-config --libs` -lSDL_image -lSDL_mixer -lz -lGL -lGLU \

+	-lX11

 CLIENT_OBJS= \

 	client.o \

 	clientextras.o \