diff --git a/client/rpc/src/state/state_light.rs b/client/rpc/src/state/state_light.rs
index 74fb74c2296dc..fde461f5d2d20 100644
--- a/client/rpc/src/state/state_light.rs
+++ b/client/rpc/src/state/state_light.rs
@@ -569,7 +569,7 @@ where
 										.map(|data| {
 											data.iter()
 												.filter_map(|(k, d)| {
-													keys.contains(k).then(|| d.map(|v| StorageData(v.to_vec())))
+													keys.contains(k).then(|| d.as_ref().map(|v| StorageData(v.to_vec())))
 												})
 												.collect::<Vec<_>>()
 										})