diff --git a/src/pages/tools/string/slug-generator/types.ts b/src/pages/tools/string/slug-generator/types.ts
index 9325310..e0d1d31 100644
--- a/src/pages/tools/string/slug-generator/types.ts
+++ b/src/pages/tools/string/slug-generator/types.ts
@@ -1 +1,3 @@
-export type InitialValuesType = Record<string, never>;
+export type InitialValuesType = {
+  caseSensitive: boolean;
+};