diff --git a/src/main.cpp b/src/main.cpp
index e4706115..5ec2087b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -47,6 +47,9 @@ int main(int argc, char *argv[])
                 QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
         #endif
     }
+    if (NULL != disp) {
+        XCloseDisplay(disp);
+    }
 
     QApplication a(argc, argv);