diff --git a/Zotlabs/Module/Import.php b/Zotlabs/Module/Import.php
index 0e581636d..f5fad6046 100644
--- a/Zotlabs/Module/Import.php
+++ b/Zotlabs/Module/Import.php
@@ -116,16 +116,10 @@ class Import extends \Zotlabs\Web\Controller {
 				return;
 		}
 
-// This is only an info message but it is alarming to folks who then report failure with this as the cause, when in fact we ignore this completely.
-//		if(array_key_exists('compatibility',$data) && array_key_exists('database',$data['compatibility'])) {
-//			$v1 = substr($data['compatibility']['database'],-4);
-//			$v2 = substr(DB_UPDATE_VERSION,-4);
-//			if($v2 > $v1) {
-//				$t = sprintf( t('Warning: Database versions differ by %1$d updates.'), $v2 - $v1 );
-//				notice($t);
-//			}
-//
-//		}
+		if((! array_path_exists('compatibility/codebase',$data)) || $data['compatibility']['codebase'] !== 'zap') {
+			notice('Data export format is not compatible with this software');
+			return;
+		}
 
 		if($moving)
 			$seize = 1;
diff --git a/include/channel.php b/include/channel.php
index c5e2d54be..9704d436e 100644
--- a/include/channel.php
+++ b/include/channel.php
@@ -758,6 +758,7 @@ function identity_basic_export($channel_id, $sections = null) {
 
 	$ret['compatibility'] = [
 		'project' => PLATFORM_NAME,
+		'codebase' => 'zap',
 		'version' => STD_VERSION,
 		'database' => DB_UPDATE_VERSION,
 		'server_role' => Zotlabs\Lib\System::get_server_role()