diff --git a/.changeset/angry-mugs-applaud.md b/.changeset/angry-mugs-applaud.md
new file mode 100644
index 0000000..3636642
--- /dev/null
+++ b/.changeset/angry-mugs-applaud.md
@@ -0,0 +1,5 @@
+---
+"@effect/cli": patch
+---
+
+fix the type signature of `Options.keyValueMap`
diff --git a/src/Options.ts b/src/Options.ts
index 2c79825..0b3ff99 100644
--- a/src/Options.ts
+++ b/src/Options.ts
@@ -257,7 +257,7 @@ export const integer: (name: string) => Options<number> = InternalOptions.intege
  * @since 1.0.0
  * @category constructors
  */
-export const keyValueMap: (name: string) => Options<HashMap<string, string>> =
+export const keyValueMap: (option: string | Options<string>) => Options<HashMap<string, string>> =
   InternalOptions.keyValueMap
 
 /**