diff --git a/src/context.c b/src/context.c
index 36840e55..cda16d2d 100644
--- a/src/context.c
+++ b/src/context.c
@@ -543,7 +543,7 @@ GLFWAPI void glfwMakeContextCurrent(GLFWwindow* handle)
 
     _GLFW_REQUIRE_INIT();
 
-    if (window->context.api == GLFW_NO_API)
+    if (window && window->context.api == GLFW_NO_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return;