Regenerate projects
diff --git a/grpc.gemspec b/grpc.gemspec
index 2fe2536..4d594cf 100644
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -84,6 +84,7 @@
s.files += %w( include/grpc/impl/codegen/sync_posix.h )
s.files += %w( include/grpc/impl/codegen/sync_windows.h )
s.files += %w( src/core/lib/profiling/timers.h )
+ s.files += %w( src/core/lib/support/abstract.h )
s.files += %w( src/core/lib/support/arena.h )
s.files += %w( src/core/lib/support/atomic.h )
s.files += %w( src/core/lib/support/atomic_with_atm.h )