diff --git a/docs-source/src/en/config/r8-proguard.md b/docs-source/src/en/config/r8-proguard.md
index fd5c7c8..b7a6986 100644
--- a/docs-source/src/en/config/r8-proguard.md
+++ b/docs-source/src/en/config/r8-proguard.md
@@ -7,7 +7,7 @@ If you are using the [kavaref-extension](../library/kavaref-extension) module an
 
 ```
 -keepattributes Signature
--keep class * extends com.highcapable.kavaref.extension.TypeRef {
+-keep class,allowobfuscation * extends com.highcapable.kavaref.extension.TypeRef {
     <init>(...);
 }
 ```
@@ -16,5 +16,4 @@ If you are using the [kavaref-extension](../library/kavaref-extension) module an
 
 ```
 -keep class com.highcapable.kavaref.extension.TypeRef {*;}
--keep class,allowobfuscation * extends com.highcapable.kavaref.extension.TypeRef
 ```
\ No newline at end of file
diff --git a/docs-source/src/zh-cn/config/r8-proguard.md b/docs-source/src/zh-cn/config/r8-proguard.md
index 1d28c5a..4096a71 100644
--- a/docs-source/src/zh-cn/config/r8-proguard.md
+++ b/docs-source/src/zh-cn/config/r8-proguard.md
@@ -6,7 +6,7 @@
 
 ```
 -keepattributes Signature
--keep class * extends com.highcapable.kavaref.extension.TypeRef {
+-keep class,allowobfuscation * extends com.highcapable.kavaref.extension.TypeRef {
     <init>(...);
 }
 ```
@@ -15,5 +15,4 @@
 
 ```
 -keep class com.highcapable.kavaref.extension.TypeRef {*;}
--keep class,allowobfuscation * extends com.highcapable.kavaref.extension.TypeRef
 ```
\ No newline at end of file