diff --git a/include/GL/glfw3.h b/include/GL/glfw3.h
index a7449099..e2f25901 100644
--- a/include/GL/glfw3.h
+++ b/include/GL/glfw3.h
@@ -462,7 +462,6 @@ extern "C" {
 #define GLFW_PLATFORM_ERROR       0x00070008
 #define GLFW_WINDOW_NOT_ACTIVE    0x00070009
 #define GLFW_CLIPBOARD_FORMAT_UNAVAILABLE 0x00070010
-#define GLFW_CLIPBOARD_CANNOT_OWN 0x00070011
 
 /* Gamma ramps */
 #define GLFW_GAMMA_RAMP_SIZE      256