diff --git a/vcsserver/remote/svn.py b/vcsserver/remote/svn.py
--- a/vcsserver/remote/svn.py
+++ b/vcsserver/remote/svn.py
@@ -447,7 +447,7 @@ class SvnRemote(RemoteBase):
         commit_id = svn.repos.fs_commit_txn(repo, txn)
 
         if timestamp:
-            apr_time = apr_time_t(timestamp)
+            apr_time = int(apr_time_t(timestamp))
             ts_formatted = svn.core.svn_time_to_cstring(apr_time)
             svn.fs.change_rev_prop(fsobj, commit_id, 'svn:date', ts_formatted)