diff --git a/src/null_platform.h b/src/null_platform.h
index 6d900111..fb9374b4 100644
--- a/src/null_platform.h
+++ b/src/null_platform.h
@@ -239,7 +239,6 @@ void _glfwSetRawMouseMotionNull(_GLFWwindow *window, GLFWbool enabled);
 GLFWbool _glfwRawMouseMotionSupportedNull(void);
 void _glfwShowWindowNull(_GLFWwindow* window);
 void _glfwRequestWindowAttentionNull(_GLFWwindow* window);
-void _glfwRequestWindowAttentionNull(_GLFWwindow* window);
 void _glfwHideWindowNull(_GLFWwindow* window);
 void _glfwFocusWindowNull(_GLFWwindow* window);
 GLFWbool _glfwWindowFocusedNull(_GLFWwindow* window);