diff --git a/src/cocoa_joystick.m b/src/cocoa_joystick.m
index bf6e66bb..3100e210 100644
--- a/src/cocoa_joystick.m
+++ b/src/cocoa_joystick.m
@@ -83,7 +83,7 @@ typedef struct
 
 } _glfwJoystick;
 
-_glfwJoystick _glfwJoysticks[GLFW_JOYSTICK_LAST + 1];
+static _glfwJoystick _glfwJoysticks[GLFW_JOYSTICK_LAST + 1];
 
 
 void GetElementsCFArrayHandler(const void* value, void* parameter);