diff --git a/.gitignore b/.gitignore
index 5a6f350..2311ca4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,5 @@
 build-*
 *.DS_Store
 userdata.ini
-Info_Mac.plist
\ No newline at end of file
+Info_Mac.plist
+/ci/build_temp
\ No newline at end of file
diff --git a/ci/mac/build_for_mac.sh b/ci/mac/build_for_mac.sh
index a3e6dd0..4791015 100755
--- a/ci/mac/build_for_mac.sh
+++ b/ci/mac/build_for_mac.sh
@@ -58,7 +58,7 @@ fi
 mkdir $build_path
 cd $build_path
 
-cmake_params="-DCMAKE_PREFIX_PATH=$qt_cmake_path -DCMAKE_BUILD_TYPE=$build_mode -G Xcode"
+cmake_params="-DCMAKE_PREFIX_PATH=$qt_cmake_path -DCMAKE_BUILD_TYPE=$build_mode -DCMAKE_OSX_ARCHITECTURES=x86_64"
 cmake $cmake_params ../..
 if [ $? -ne 0 ] ;then
     echo "cmake failed"