diff --git a/src/window.c b/src/window.c
index e9da2367..901d9a77 100644
--- a/src/window.c
+++ b/src/window.c
@@ -268,7 +268,7 @@ GLFWAPI GLFWwindow glfwCreateWindow(int width, int height,
     wndconfig.glDebug        = _glfwLibrary.hints.glDebug ? GL_TRUE : GL_FALSE;
     wndconfig.glProfile      = _glfwLibrary.hints.glProfile;
     wndconfig.glRobustness   = _glfwLibrary.hints.glRobustness ? GL_TRUE : GL_FALSE;
-    wndconfig.share          = share;
+    wndconfig.share          = (_GLFWwindow*) share;
 
     // Reset to default values for the next call
     _glfwSetDefaultWindowHints();