diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index 14e77330..cfc55f1e 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -46,6 +46,11 @@ jobs:
       with:
         name: ${{ steps.prepareArtifact.outputs.debugName }}
         path: './LSPosed-debug/*'
+    - name: Upload mappings
+      uses: actions/upload-artifact@v2
+      with:
+        name: mappings
+        path: "core/build/outputs/mapping"
     - name: Post to channel
       if: ${{ github.event_name != 'pull_request' && success() && github.ref == 'refs/heads/master' }}
       env:
diff --git a/core/proguard-rules.pro b/core/proguard-rules.pro
index 95342ee5..6bd043d0 100644
--- a/core/proguard-rules.pro
+++ b/core/proguard-rules.pro
@@ -27,6 +27,7 @@
     public static void forkAndSpecializePost(java.lang.String, java.lang.String, android.os.IBinder);
     public static void main(java.lang.String[]);
 }
+-keepnames class io.github.lsposed.lspd.hooker.HandleBindAppHooker
 -keepclasseswithmembers class io.github.lsposed.lspd.nativebridge.* {
     native *;
 }