diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index 7fdd6c33bc..abef73e999 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -64,7 +64,7 @@ jobs:
       - name: First set up.
         run: |
           sudo chown -R `whoami`:admin /usr/local/share
-          brew install automake
+          brew install automake ninja
 
           # Disable spotlight.
           sudo mdutil -a -i off
@@ -113,13 +113,14 @@ jobs:
           ./configure.sh \
           -D CMAKE_C_FLAGS="-Werror" \
           -D CMAKE_CXX_FLAGS="-Werror" \
+          -D CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED=NO \
           -D TDESKTOP_API_TEST=ON \
           -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
           $DEFINE
 
           cd ../out
 
-          xcoderun='xcodebuild build -project Telegram.xcodeproj -scheme Telegram -destination "platform=macOS,arch=x86_64" -configuration Debug CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO'
+          xcoderun='xcodebuild build -project Telegram.xcodeproj -scheme Telegram -destination "platform=macOS,arch=x86_64" -configuration Debug'
           bash -c "$xcoderun" || bash -c "$xcoderun" || bash -c "$xcoderun"
 
       - name: Move artifact.