diff --git a/apps/canvas/front/src/lib/state.ts b/apps/canvas/front/src/lib/state.ts
index f2836f1..51f67a6 100644
--- a/apps/canvas/front/src/lib/state.ts
+++ b/apps/canvas/front/src/lib/state.ts
@@ -273,7 +273,7 @@
   onConnect: OnConnect;
   setNodes: (nodes: AppNode[]) => void;
   setEdges: (edges: Edge[]) => void;
-  setProject: (projectId: string) => void;
+  setProject: (projectId: string | undefined) => void;
   setProjects: (projects: Project[]) => void;
   updateNode: <T extends NodeType>(id: string, data: DeepPartial<(AppNode & (Pick<AppNode, "type"> | { type: T }))>) => void;
   updateNodeData: <T extends NodeType>(id: string, data: DeepPartial<(AppNode & (Pick<AppNode, "type"> | { type: T }))["data"]>) => void;