diff --git a/drivers/extcon/extcon_class.c b/drivers/extcon/extcon_class.c
index f598a700ec15..99f7227834e3 100644
--- a/drivers/extcon/extcon_class.c
+++ b/drivers/extcon/extcon_class.c
@@ -65,7 +65,7 @@ const char *extcon_cable_name[] = {
 	NULL,
 };
 
-struct class *extcon_class;
+static struct class *extcon_class;
 #if defined(CONFIG_ANDROID)
 static struct class_compat *switch_class;
 #endif /* CONFIG_ANDROID */