diff --git a/store/db/mysql/memo.go b/store/db/mysql/memo.go
index 05d45ea27..5aeae6cd4 100644
--- a/store/db/mysql/memo.go
+++ b/store/db/mysql/memo.go
@@ -29,12 +29,12 @@ func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, e
 	// Add custom timestamps if provided
 	if create.CreatedTs != 0 {
 		fields = append(fields, "`created_ts`")
-		placeholder = append(placeholder, "?")
+		placeholder = append(placeholder, "FROM_UNIXTIME(?)")
 		args = append(args, create.CreatedTs)
 	}
 	if create.UpdatedTs != 0 {
 		fields = append(fields, "`updated_ts`")
-		placeholder = append(placeholder, "?")
+		placeholder = append(placeholder, "FROM_UNIXTIME(?)")
 		args = append(args, create.UpdatedTs)
 	}