diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 3f94039..e621dad 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -862,7 +862,7 @@
 
 #endif /* !CONFIG_HIBERNATION */
 
-struct pm_ext_ops platform_pm_ops = {
+static struct pm_ext_ops platform_pm_ops = {
 	.base = {
 		.prepare = platform_pm_prepare,
 		.complete = platform_pm_complete,