diff --git a/client/x11/platform.cpp b/client/x11/platform.cpp
index 65af063f..11334148 100644
--- a/client/x11/platform.cpp
+++ b/client/x11/platform.cpp
@@ -66,7 +66,7 @@
 //#define X_DEBUG_SYNC(display) XSync(display, False)
 #define X_DEBUG_SYNC(display)
 #ifdef HAVE_XRANDR12
-//#define USE_XRANDR_1_2
+#define USE_XRANDR_1_2
 #endif
 
 static Display* x_display = NULL;