diff --git a/.github/workflows/sync_cmakebuild.yml b/.github/workflows/sync_cmakebuild.yml
index 44cb51aae818..2ccb4b569870 100644
--- a/.github/workflows/sync_cmakebuild.yml
+++ b/.github/workflows/sync_cmakebuild.yml
@@ -40,6 +40,11 @@ jobs:
           echo "Merge did not bring any changes, exiting"
           exit
         fi
+        # Generate ydb/core/base/generate with python codegen under ya
+        ./ya make ydb/core/base/generated/
+        ydb/core/base/generated/codegen/codegen ydb/core/base/generated/runtime_feature_flags.h.in ydb/core/base/generated/runtime_feature_flags.h
+        ydb/core/base/generated/codegen/codegen ydb/core/base/generated/runtime_feature_flags.cpp.in ydb/core/base/generated/runtime_feature_flags.cpp
+        # Generate cmakelists using pregenerated ydb/core/base/generated/runtime_feature_flags.*
         ./generate_cmake -k
         echo ${mainsha} > ydb/ci/cmakegen.txt
         git add .