diff --git a/types/env-paths/env-paths-tests.ts b/types/env-paths/env-paths-tests.ts
index 5281df4cfc..9f360bbe41 100644
--- a/types/env-paths/env-paths-tests.ts
+++ b/types/env-paths/env-paths-tests.ts
@@ -6,3 +6,5 @@ envPaths('./');
 envPaths('./', {suffix: 'test'});
 // $ExpectType Paths
 envPaths('./', {suffix: false});
+// $ExpectType Paths
+envPaths('./', {suffix: true});
diff --git a/types/env-paths/index.d.ts b/types/env-paths/index.d.ts
index 69deed7731..8b594d8a61 100644
--- a/types/env-paths/index.d.ts
+++ b/types/env-paths/index.d.ts
@@ -5,7 +5,7 @@
 
 export = envPaths;
 
-declare function envPaths(name: string, opts?: { suffix: string | false }): envPaths.Paths;
+declare function envPaths(name: string, opts?: { suffix: string | boolean }): envPaths.Paths;
 
 declare namespace envPaths {
   interface Paths {