diff --git a/features/FEATURE_BLE/ble/pal/MemorySecurityDB.h b/features/FEATURE_BLE/ble/pal/MemorySecurityDB.h
index afb63f418d..24783f42c9 100644
--- a/features/FEATURE_BLE/ble/pal/MemorySecurityDB.h
+++ b/features/FEATURE_BLE/ble/pal/MemorySecurityDB.h
@@ -238,7 +238,7 @@ public:
         if (entry) {
             entry->state = ENTRY_WRITTEN;
             entry->peer_identity.irk = irk;
-            entry->flags.irk_stored;
+            entry->flags.irk_stored = true;
         }
     }