--- a/tests/test-evolve-obshistory-content-divergent.t	Wed Jan 01 21:36:21 2020 +0530
+++ b/tests/test-evolve-obshistory-content-divergent.t	Mon Nov 04 01:30:50 2019 +0530
@@ -5,6 +5,10 @@
 ============
 
   $ . $TESTDIR/testlib/obshistory_setup.sh
+  $ cat >> $HGRCPATH << EOF
+  > [experimental]
+  > evolution.allowdivergence = True
+  > EOF
 
 Test output with content-divergence
 ===================================