diff --git a/dlls/xinput1_3/xinput_private.h b/dlls/xinput1_3/xinput_private.h
index 7de9a2a2e4d..0de4f3b0b03 100644
--- a/dlls/xinput1_3/xinput_private.h
+++ b/dlls/xinput1_3/xinput_private.h
@@ -27,8 +27,8 @@ typedef struct _xinput_controller
     XINPUT_VIBRATION vibration;
 } xinput_controller;
 
-CRITICAL_SECTION xinput_crit;
-xinput_controller controllers[XUSER_MAX_COUNT];
+extern CRITICAL_SECTION xinput_crit;
+extern xinput_controller controllers[XUSER_MAX_COUNT];
 
 void HID_find_gamepads(xinput_controller *devices) DECLSPEC_HIDDEN;
 void HID_destroy_gamepads(xinput_controller *devices) DECLSPEC_HIDDEN;