diff --git a/tests/test-http-bundle1.t b/tests/test-http-bundle1.t
--- a/tests/test-http-bundle1.t
+++ b/tests/test-http-bundle1.t
@@ -4,9 +4,9 @@ This test is a duplicate of 'test-http.t
 parts that are not bundle1/bundle2 specific.
 
   $ cat << EOF >> $HGRCPATH
-  > [experimental]
+  > [devel]
   > # This test is dedicated to interaction through old bundle
-  > bundle2-exp = False
+  > legacy.exchange = bundle1
   > EOF
 
   $ hg init test
diff --git a/tests/test-push-http-bundle1.t b/tests/test-push-http-bundle1.t
--- a/tests/test-push-http-bundle1.t
+++ b/tests/test-push-http-bundle1.t
@@ -5,9 +5,9 @@ to change with bundle2. Feel free to fac
 which does not need to exist to keep bundle1 working.
 
   $ cat << EOF >> $HGRCPATH
-  > [experimental]
+  > [devel]
   > # This test is dedicated to interaction through old bundle
-  > bundle2-exp = False
+  > legacy.exchange = bundle1
   > EOF
 
   $ hg init test
diff --git a/tests/test-ssh-bundle1.t b/tests/test-ssh-bundle1.t
--- a/tests/test-ssh-bundle1.t
+++ b/tests/test-ssh-bundle1.t
@@ -2,9 +2,9 @@ This test is a duplicate of 'test-http.t
 parts that are not bundle1/bundle2 specific.
 
   $ cat << EOF >> $HGRCPATH
-  > [experimental]
+  > [devel]
   > # This test is dedicated to interaction through old bundle
-  > bundle2-exp = False
+  > legacy.exchange = bundle1
   > [format] # temporary settings
   > usegeneraldelta=yes
   > EOF
diff --git a/tests/test-unbundlehash.t b/tests/test-unbundlehash.t
--- a/tests/test-unbundlehash.t
+++ b/tests/test-unbundlehash.t
@@ -3,11 +3,11 @@
 Test wire protocol unbundle with hashed heads (capability: unbundlehash)
 
   $ cat << EOF >> $HGRCPATH
-  > [experimental]
+  > [devel]
   > # This tests is intended for bundle1 only.
   > # bundle2 carries the head information inside the bundle itself and
   > # always uses 'force' as the heads value.
-  > bundle2-exp = False
+  > legacy.exchange = bundle1
   > EOF
 
 Create a remote repository.