diff --git a/forward_engineering/helpers/alterScriptHelpers/entityHelpers/primaryKeyHelper.js b/forward_engineering/helpers/alterScriptHelpers/entityHelpers/primaryKeyHelper.js
index c8e8791..e61f4e7 100644
--- a/forward_engineering/helpers/alterScriptHelpers/entityHelpers/primaryKeyHelper.js
+++ b/forward_engineering/helpers/alterScriptHelpers/entityHelpers/primaryKeyHelper.js
@@ -153,7 +153,7 @@ const wasCompositePkChangedInTransitionFromCompositeToRegular = collection => {
 		return PkTransitionDto.noTransition();
 	}
 	const idOfPkColumn = idsOfColumns[0];
-	const newColumnJsonSchema = Object.values(collection.role.properties).find(
+	const newColumnJsonSchema = Object.values(collection.properties || {}).find(
 		columnJsonSchema => columnJsonSchema.GUID === idOfPkColumn,
 	);
 	if (!newColumnJsonSchema) {