diff --git a/src/barebox-state/backend_storage.c b/src/barebox-state/backend_storage.c
index 47a41dd..060127b 100644
--- a/src/barebox-state/backend_storage.c
+++ b/src/barebox-state/backend_storage.c
@@ -48,7 +48,7 @@
  * when storing a new state we can just write all buckets in order.
  */
 
-const unsigned int min_copies_written = 1;
+static const unsigned int min_copies_written = 1;
 
 /**
  * state_storage_write - Writes the given data to the storage