diff --git a/src/common/plugins/Idle/Idle.pro b/src/common/plugins/Idle/Idle.pro
index 75decda..82a3c7d 100644
--- a/src/common/plugins/Idle/Idle.pro
+++ b/src/common/plugins/Idle/Idle.pro
@@ -19,6 +19,7 @@ SCHAT_CORE_LIB = 1
 QT = core gui
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
++greaterThan(QT_MAJOR_VERSION, 4): QT += x11extras
 
 HEADERS  = \
    Idle.h \