diff --git a/src/lib/lib.pro b/src/lib/lib.pro
index 82845f854..28d3b18dc 100644
--- a/src/lib/lib.pro
+++ b/src/lib/lib.pro
@@ -401,6 +401,8 @@ RESOURCES += \
     target.path = $$library_folder
 
     INSTALLS += target
+
+    LIBS += -lX11
 }
 
 message(===========================================)