diff --git a/BUILD.gn b/BUILD.gn
index 1cc29e4a82295abef3481058ae33abf4fe3d349e..33f2731d5772b0c0967da300725fedc985a6d457 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -36,16 +36,14 @@ gen_js_obj("decimal_mjs") {
 ohos_shared_library("decimal") {
   sources = [ "decimal.cpp" ]
 
-  deps = [ 
+  deps = [
     ":decimal_abc",
-    ":decimal_mjs"
-  ]
-  
-  external_deps = [
-    "napi:ace_napi",
+    ":decimal_mjs",
   ]
 
-  relative_install_dir = "module/arkts"
+  external_deps = [ "napi:ace_napi" ]
+
+  relative_install_dir = "module/arkts/math"
   part_name = "decimal.js"
   subsystem_name = "thirdparty"
-}
\ No newline at end of file
+}
diff --git a/decimal.cpp b/decimal.cpp
index 64a1650efcf8d6ac8bccf392becea779165f8baf..c5e0997bf12f270412514bcca0635734ed935308 100644
--- a/decimal.cpp
+++ b/decimal.cpp
@@ -15,7 +15,7 @@ extern const char _binary_decimal_abc_end[];
 
 // Napi get mjs code function
 extern "C" __attribute__((visibility("default"))) 
-void NAPI_arkts_Decimal_GetMJSCode(const char **buf, int *buflen)
+void NAPI_arkts_math_Decimal_GetMJSCode(const char **buf, int *buflen)
 {
     if (buf != nullptr) {
         *buf = _binary_decimal_mjs_start;
@@ -27,7 +27,7 @@ void NAPI_arkts_Decimal_GetMJSCode(const char **buf, int *buflen)
 
 // Napi get abc code function
 extern "C" __attribute__((visibility("default"))) 
-void NAPI_arkts_Decimal_GetABCCode(const char **buf, int *buflen)
+void NAPI_arkts_math_Decimal_GetABCCode(const char **buf, int *buflen)
 {
     if (buf != nullptr) {
         *buf = _binary_decimal_abc_start;
@@ -42,7 +42,7 @@ void NAPI_arkts_Decimal_GetABCCode(const char **buf, int *buflen)
  */
 static napi_module DecimalModule = {
     .nm_filename = nullptr,
-    .nm_modname = "arkts.Decimal",
+    .nm_modname = "arkts.math.Decimal",
 };
 extern "C" __attribute__((constructor)) void DecimalRegisterModule(void)
 {