diff --git a/board/BuS/eb_cpu5282/eb_cpu5282.c b/board/BuS/eb_cpu5282/eb_cpu5282.c
index 153ed0e963b0dda575df6b107dbeaa9100cb194d..144a08922b103df9d39070cb84eb774fac4eaf91 100644
--- a/board/BuS/eb_cpu5282/eb_cpu5282.c
+++ b/board/BuS/eb_cpu5282/eb_cpu5282.c
@@ -22,8 +22,8 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 #if IS_ENABLED(CONFIG_VIDEO_VCXK)
-unsigned long display_width;
-unsigned long display_height;
+extern unsigned long display_width;
+extern unsigned long display_height;
 #endif
 
 /*---------------------------------------------------------------------------*/