diff --git a/restore_emitter.cc b/restore_emitter.cc
index 88f365c..d8dbaae 100644
--- a/restore_emitter.cc
+++ b/restore_emitter.cc
@@ -71,7 +71,7 @@ namespace {
 
 			// Add entry to the details tree
 			uint64_t key[1] = {dev};
-			device_details details = {mapped_blocks, trans_id, creation_time, snap_time};
+			device_details details = {mapped_blocks, trans_id, (uint32_t)creation_time, (uint32_t)snap_time};
 			md_->details_->insert(key, details);
 
 			// Insert an empty mapping tree