diff --git a/packages/coding-agent/src/modes/interactive/interactive-mode.ts b/packages/coding-agent/src/modes/interactive/interactive-mode.ts
index a49fb757..cc5b9863 100644
--- a/packages/coding-agent/src/modes/interactive/interactive-mode.ts
+++ b/packages/coding-agent/src/modes/interactive/interactive-mode.ts
@@ -359,6 +359,9 @@ export class InteractiveMode {
 			fdPath,
 		);
 		this.defaultEditor.setAutocompleteProvider(this.autocompleteProvider);
+		if (this.editor !== this.defaultEditor) {
+			this.editor.setAutocompleteProvider?.(this.autocompleteProvider);
+		}
 	}
 
 	async init(): Promise<void> {