diff --git a/lib/src/container/store.rs b/lib/src/container/store.rs
index 58cee1750..e66c33ee8 100644
--- a/lib/src/container/store.rs
+++ b/lib/src/container/store.rs
@@ -883,7 +883,7 @@ impl ImageImporter {
                         None,
                         Some(&metadata),
                         &merged_root,
-                        timestamp as u64,
+                        timestamp,
                         cancellable,
                     )
                     .context("Writing commit")?;