diff --git a/src/config.cpp b/src/config.cpp
index dc2ae27a..691dd2bc 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -78,7 +78,7 @@ Config::CfgConfigFile::to_string() const
 
 Config::Config()
   :
-  allow_idmap(false),
+  allow_idmap(true),
   async_read(true),
   branches(),
   branches_mount_timeout(0),