diff --git a/grpc.gemspec b/grpc.gemspec
index 1cd6d66..783af00 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -196,6 +196,7 @@
   s.files += %w( src/core/lib/iomgr/error.h )
   s.files += %w( src/core/lib/iomgr/error_internal.h )
   s.files += %w( src/core/lib/iomgr/ev_epoll_linux.h )
+  s.files += %w( src/core/lib/iomgr/ev_epoll_thread_pool_linux.h )
   s.files += %w( src/core/lib/iomgr/ev_poll_posix.h )
   s.files += %w( src/core/lib/iomgr/ev_posix.h )
   s.files += %w( src/core/lib/iomgr/exec_ctx.h )
@@ -402,6 +403,7 @@
   s.files += %w( src/core/lib/iomgr/endpoint_pair_windows.c )
   s.files += %w( src/core/lib/iomgr/error.c )
   s.files += %w( src/core/lib/iomgr/ev_epoll_linux.c )
+  s.files += %w( src/core/lib/iomgr/ev_epoll_thread_pool_linux.c )
   s.files += %w( src/core/lib/iomgr/ev_poll_posix.c )
   s.files += %w( src/core/lib/iomgr/ev_posix.c )
   s.files += %w( src/core/lib/iomgr/exec_ctx.c )