diff --git a/src/x11_monitor.c b/src/x11_monitor.c
index d68c5888..d9144bb4 100644
--- a/src/x11_monitor.c
+++ b/src/x11_monitor.c
@@ -203,8 +203,7 @@ void _glfwPollMonitorsX11(void)
 
         free(disconnected);
     }
-
-    if (!_glfw.monitorCount)
+    else
     {
         const int widthMM = DisplayWidthMM(_glfw.x11.display, _glfw.x11.screen);
         const int heightMM = DisplayHeightMM(_glfw.x11.display, _glfw.x11.screen);