diff --git a/components/board_2432s024/board_2432s024_touch.h b/components/board_2432s024/board_2432s024_touch.h
index df2a2320..289067d1 100644
--- a/components/board_2432s024/board_2432s024_touch.h
+++ b/components/board_2432s024/board_2432s024_touch.h
@@ -6,7 +6,7 @@
 extern "C" {
 #endif
 
-NbTouchDriver board_2432s024_create_touch_driver();
+extern NbTouchDriver board_2432s024_create_touch_driver();
 
 #ifdef __cplusplus
 }