diff --git a/git-svn.perl b/git-svn.perl
index d070de0..d93d133 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -2068,6 +2068,10 @@ sub gc_directory {
 	}
 }
 
+END {
+    undef $_repository;
+}
+
 __END__
 
 Data structures: