diff --git a/.changeset/afraid-pets-notice.md b/.changeset/afraid-pets-notice.md
new file mode 100644
index 00000000..c83f09f0
--- /dev/null
+++ b/.changeset/afraid-pets-notice.md
@@ -0,0 +1,5 @@
+---
+"@clack/core": minor
+---
+
+Remove unused `debug` option key.
diff --git a/packages/core/src/prompts/prompt.ts b/packages/core/src/prompts/prompt.ts
index 6c241f16..4333da9d 100644
--- a/packages/core/src/prompts/prompt.ts
+++ b/packages/core/src/prompts/prompt.ts
@@ -21,7 +21,6 @@ export interface PromptOptions<TValue, Self extends Prompt<TValue>> {
 	validate?: ((value: TValue | undefined) => string | Error | undefined) | undefined;
 	input?: Readable;
 	output?: Writable;
-	debug?: boolean;
 	signal?: AbortSignal;
 }