include log.h for mac
diff --git a/src/core/lib/iomgr/ev_epollsig_linux.cc b/src/core/lib/iomgr/ev_epollsig_linux.cc
index 7005539..61f2a57 100644
--- a/src/core/lib/iomgr/ev_epollsig_linux.cc
+++ b/src/core/lib/iomgr/ev_epollsig_linux.cc
@@ -19,6 +19,7 @@
#include "src/core/lib/iomgr/port.h"
#include <grpc/grpc_posix.h>
+#include <grpc/support/log.h>
/* This polling engine is only relevant on linux kernels supporting epoll() */
#ifdef GRPC_LINUX_EPOLL
@@ -37,7 +38,6 @@
#include <unistd.h>
#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
#include <grpc/support/string_util.h>
#include <grpc/support/tls.h>
#include <grpc/support/useful.h>