diff --git a/source/src/Makefile b/source/src/Makefile
index aae58703..d6b9dc3f 100644
--- a/source/src/Makefile
+++ b/source/src/Makefile
@@ -50,7 +50,7 @@ CLIENT_LIBS= -mwindows -L../lib -lSDL2 -lSDL2_image -lzdll -lopengl32 -lenet -lO
 else
 USRLIB=$(shell if [ -e /usr/lib64 ]; then echo "/usr/lib64"; else echo "/usr/lib"; fi)
 CLIENT_INCLUDES= $(INCLUDES) -I/usr/include `sdl2-config --cflags` -idirafter ../include
-CLIENT_LIBS= -L../enet/.libs -lenet -L$(USRLIB) `sdl2-config --libs` -lSDL2_image -lz -lGL -lopenal -lvorbisfile
+CLIENT_LIBS= -L../enet/.libs -lenet -L$(USRLIB) -lX11 `sdl2-config --libs` -lSDL2_image -lz -lGL -lopenal -lvorbisfile
 endif
 
 CLIENT_OBJS= \
diff --git a/source/src/platform.h b/source/src/platform.h
index 29031938..22202993 100644
--- a/source/src/platform.h
+++ b/source/src/platform.h
@@ -41,6 +41,7 @@
 #ifndef STANDALONE
     #include <SDL.h>
     #include <SDL_image.h>
+	#include <SDL_syswm.h>
 
     #define GL_GLEXT_LEGACY
     #define __glext_h__