diff --git a/JavaApp/src/main/java/org/lwjgl/glfw/GLFW.java b/JavaApp/src/main/java/org/lwjgl/glfw/GLFW.java
index 464e0f8d..9ccee456 100644
--- a/JavaApp/src/main/java/org/lwjgl/glfw/GLFW.java
+++ b/JavaApp/src/main/java/org/lwjgl/glfw/GLFW.java
@@ -509,8 +509,9 @@ public class GLFW
         }
 
         // Minecraft triggers a glfwPollEvents() on splash screen, so update window size there.
-        // CallbackBridge.receiveCallback(CallbackBridge.EVENT_TYPE_FRAMEBUFFER_SIZE, Tools.mGLFWWindowWidth, Tools.mGLFWWindowHeight, 0, 0);
-        // CallbackBridge.receiveCallback(CallbackBridge.EVENT_TYPE_WINDOW_SIZE, Tools.mGLFWWindowWidth, Tools.mGLFWWindowHeight, 0, 0);
+        // note: these calls are required, otherwise mouse input will break
+        CallbackBridge.receiveCallback(CallbackBridge.EVENT_TYPE_FRAMEBUFFER_SIZE, Tools.mGLFWWindowWidth, Tools.mGLFWWindowHeight, 0, 0);
+        CallbackBridge.receiveCallback(CallbackBridge.EVENT_TYPE_WINDOW_SIZE, Tools.mGLFWWindowWidth, Tools.mGLFWWindowHeight, 0, 0);
 
         mGLFWErrorCallback = GLFWErrorCallback.createPrint();
         mGLFWKeyCodes = new ArrayMap<>();