diff --git a/src/core.c b/src/core.c
index 0a1c34c9..d6a10943 100644
--- a/src/core.c
+++ b/src/core.c
@@ -441,12 +441,13 @@ void InitWindow(int width, int height, void *data)
     uwpWindow = (EGLNativeWindowType)data;
 #endif
 
+    // Init hi-res timer
+    InitTimer();
+
     // Init graphics device (display device and OpenGL context)
     // NOTE: returns true if window and graphic device has been initialized successfully
     windowReady = InitGraphicsDevice(width, height);
-
-    // Init hi-res timer
-    InitTimer();
+    if (!windowReady) return;
 
 #if defined(SUPPORT_DEFAULT_FONT)
     // Load default font