diff --git a/src/vs/workbench/contrib/chat/browser/widget/input/chatInputPart.ts b/src/vs/workbench/contrib/chat/browser/widget/input/chatInputPart.ts
index 1a4b90632fb524..8e579717a74788 100644
--- a/src/vs/workbench/contrib/chat/browser/widget/input/chatInputPart.ts
+++ b/src/vs/workbench/contrib/chat/browser/widget/input/chatInputPart.ts
@@ -1934,7 +1934,7 @@ export class ChatInputPart extends Disposable implements IHistoryNavigationWidge
 			// when the session type changes (different session types may have
 			// different model pools via targetChatSessionType).
 			const newSessionType = this.getCurrentSessionType();
-			if (newSessionType !== this._currentSessionType) {
+			if (e.currentSessionResource && newSessionType !== this._currentSessionType) {
 				this._currentSessionType = newSessionType;
 				this.initSelectedModel();
 			}