diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index f437bec5fb3..af12f201048 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -84,7 +84,7 @@
 #undef register
 #endif
 
-#define XCOORD_MAX 16383
+#define XCOORD_MAX 32767
 enum {
     defaultWindowWidth = 160,
     defaultWindowHeight = 160