diff --git a/inc/caldav-PUT-default.php b/inc/caldav-PUT-default.php
index 4de93170..612f6a4c 100644
--- a/inc/caldav-PUT-default.php
+++ b/inc/caldav-PUT-default.php
@@ -91,6 +91,10 @@ $qry->QDo("SELECT write_sync_change( $collection_id, $response_code, :dav_name)"
 $qry = new AwlQuery('COMMIT');
 if ( !$qry->Exec('move') ) rollback(500);
 
+// Uncache anything to do with the collection
+$cache = getCacheInstance();
+$cache->delete( 'collection-'.$container->dav_name(), null );
+
 header('ETag: "'. $etag . '"' );
 if ( $response_code == 200 ) $response_code = 204;
 $request->DoResponse( $response_code );
diff --git a/inc/caldav-PUT-vcard.php b/inc/caldav-PUT-vcard.php
index 5ce77113..896c10a2 100644
--- a/inc/caldav-PUT-vcard.php
+++ b/inc/caldav-PUT-vcard.php
@@ -96,6 +96,10 @@ if ( !$qry->Commit() ) {
    $request->DoResponse( 500, "A database error occurred" );
 }
 
+// Uncache anything to do with the collection
+$cache = getCacheInstance();
+$cache->delete( 'collection-'.$container->dav_name(), null );
+
 header('ETag: "'. $etag . '"' );
 if ( $response_code == 200 ) $response_code = 204;
 $request->DoResponse( $response_code );
diff --git a/inc/ui/collection-edit.php b/inc/ui/collection-edit.php
index 369e9b59..6c66db4a 100644
--- a/inc/ui/collection-edit.php
+++ b/inc/ui/collection-edit.php
@@ -117,6 +117,9 @@ if ( $can_write_collection && $editor->IsSubmit() ) {
       $c->messages[] =  i18n('The file is not UTF-8 encoded, please check the error for more details.');
     }
   }
+  // Uncache anything to do with the collection
+  $cache = getCacheInstance();
+  $cache->delete( 'collection-'.$editor->Value('dav_name'), null );
 }
 else {
   if ( $id > 0 ) $editor->GetRecord();
diff --git a/testing/tests/carddav/2010-PROPFIND.result b/testing/tests/carddav/2010-PROPFIND.result
index 57f5b51a..4b43e46c 100644
--- a/testing/tests/carddav/2010-PROPFIND.result
+++ b/testing/tests/carddav/2010-PROPFIND.result
@@ -2,7 +2,7 @@ HTTP/1.1 207 Multi-Status
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
 DAV: extended-mkcol, calendar-proxy, bind, addressbook
-ETag: "0f450e6f8b3be4245401f6cc1982fd0b"
+ETag: "e722f053aaa9eef890641a0ba88837e5"
 Content-Length: 339
 Content-Type: text/xml; charset="utf-8"
 
@@ -12,7 +12,7 @@ Content-Type: text/xml; charset="utf-8"
   <href>/caldav.php/user1/addressbook/</href>
   <propstat>
    <prop>
-    <C:getctag>"ed3adbac9a1901c4d9775d7b553d1aef"</C:getctag>
+    <C:getctag>"80a8bc51f0e0b0fdd2037f1e12f5ad47"</C:getctag>
    </prop>
    <status>HTTP/1.1 200 OK</status>
   </propstat>