diff --git a/src/win32_opengl.c b/src/win32_opengl.c
index f6275782..5e94d7da 100644
--- a/src/win32_opengl.c
+++ b/src/win32_opengl.c
@@ -113,7 +113,7 @@ int _glfwPlatformExtensionSupported(const char* extension)
 
 GLFWglproc _glfwPlatformGetProcAddress(const char* procname)
 {
-    return wglGetProcAddress(procname);
+    return (GLFWglproc) wglGetProcAddress(procname);
 }