diff --git a/.changeset/tough-forks-give.md b/.changeset/tough-forks-give.md
new file mode 100644
index 0000000..4316523
--- /dev/null
+++ b/.changeset/tough-forks-give.md
@@ -0,0 +1,5 @@
+---
+'openapi-ts-request': patch
+---
+
+fix: fix bug #467
diff --git a/src/index.ts b/src/index.ts
index 191ef4a..622d5b0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -327,9 +327,7 @@ export async function generateService({
           ? [/.*/g]
           : null,
       includePaths: includePaths
-        ? map(includePaths, (item) =>
-            isString(item) ? item.toLowerCase() : item
-          )
+        ? includePaths
         : priorityRule === PriorityRule.include ||
             priorityRule === PriorityRule.both
           ? [/.*/g]
@@ -339,11 +337,7 @@ export async function generateService({
             isString(item) ? item.toLowerCase() : item
           )
         : null,
-      excludePaths: excludePaths
-        ? map(excludePaths, (item) =>
-            isString(item) ? item.toLowerCase() : item
-          )
-        : null,
+      excludePaths: excludePaths ? excludePaths : null,
       requestOptionsType: '{[key: string]: unknown}',
       namespace: 'API',
       isGenReactQuery: false,