diff --git a/keystore2/src/security_level.rs b/keystore2/src/security_level.rs
index 365f8dac..5cb3afcd 100644
--- a/keystore2/src/security_level.rs
+++ b/keystore2/src/security_level.rs
@@ -914,7 +914,7 @@ impl KeystoreSecurityLevel {
                         "In convert_storage_key_to_ephemeral: calling convertStorageKeyToEphemeral (2)",
                         500,
                     );
-                    map_km_error(km_dev.convertStorageKeyToEphemeral(key_blob))
+                    map_km_error(km_dev.convertStorageKeyToEphemeral(&upgraded_blob))
                 }
                     .context(concat!(
                         "In convert_storage_key_to_ephemeral: ",