diff --git a/packages/pi-coding-agent/src/modes/interactive/components/bash-execution.ts b/packages/pi-coding-agent/src/modes/interactive/components/bash-execution.ts
index 31a12ae80..b35855e0f 100644
--- a/packages/pi-coding-agent/src/modes/interactive/components/bash-execution.ts
+++ b/packages/pi-coding-agent/src/modes/interactive/components/bash-execution.ts
@@ -29,7 +29,7 @@ export class BashExecutionComponent extends Container {
 	private expanded = false;
 	private contentContainer: Container;
 	private ui: TUI;
-	private _borderColorKey: string;
+	private _borderColorKey: "dim" | "bashMode";
 
 	constructor(command: string, ui: TUI, excludeFromContext = false) {
 		super();