diff --git a/Makefile b/Makefile
index bb7f613..763d340 100644
--- a/Makefile
+++ b/Makefile
@@ -1405,10 +1405,10 @@
     src/core/iomgr/tcp_posix.c \
     src/core/iomgr/tcp_server_posix.c \
     src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/wakeup_fd.c \
     src/core/iomgr/wakeup_fd_eventfd.c \
     src/core/iomgr/wakeup_fd_nospecial.c \
     src/core/iomgr/wakeup_fd_pipe.c \
+    src/core/iomgr/wakeup_fd_posix.c \
     src/core/statistics/census_init.c \
     src/core/statistics/census_log.c \
     src/core/statistics/census_rpc_stats.c \
@@ -1528,10 +1528,10 @@
 src/core/iomgr/tcp_posix.c: $(OPENSSL_DEP)
 src/core/iomgr/tcp_server_posix.c: $(OPENSSL_DEP)
 src/core/iomgr/time_averaged_stats.c: $(OPENSSL_DEP)
-src/core/iomgr/wakeup_fd.c: $(OPENSSL_DEP)
 src/core/iomgr/wakeup_fd_eventfd.c: $(OPENSSL_DEP)
 src/core/iomgr/wakeup_fd_nospecial.c: $(OPENSSL_DEP)
 src/core/iomgr/wakeup_fd_pipe.c: $(OPENSSL_DEP)
+src/core/iomgr/wakeup_fd_posix.c: $(OPENSSL_DEP)
 src/core/statistics/census_init.c: $(OPENSSL_DEP)
 src/core/statistics/census_log.c: $(OPENSSL_DEP)
 src/core/statistics/census_rpc_stats.c: $(OPENSSL_DEP)
@@ -1672,10 +1672,10 @@
 objs/$(CONFIG)/src/core/iomgr/tcp_posix.o: 
 objs/$(CONFIG)/src/core/iomgr/tcp_server_posix.o: 
 objs/$(CONFIG)/src/core/iomgr/time_averaged_stats.o: 
-objs/$(CONFIG)/src/core/iomgr/wakeup_fd.o: 
 objs/$(CONFIG)/src/core/iomgr/wakeup_fd_eventfd.o: 
 objs/$(CONFIG)/src/core/iomgr/wakeup_fd_nospecial.o: 
 objs/$(CONFIG)/src/core/iomgr/wakeup_fd_pipe.o: 
+objs/$(CONFIG)/src/core/iomgr/wakeup_fd_posix.o: 
 objs/$(CONFIG)/src/core/statistics/census_init.o: 
 objs/$(CONFIG)/src/core/statistics/census_log.o: 
 objs/$(CONFIG)/src/core/statistics/census_rpc_stats.o: 
@@ -1836,10 +1836,10 @@
     src/core/iomgr/tcp_posix.c \
     src/core/iomgr/tcp_server_posix.c \
     src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/wakeup_fd.c \
     src/core/iomgr/wakeup_fd_eventfd.c \
     src/core/iomgr/wakeup_fd_nospecial.c \
     src/core/iomgr/wakeup_fd_pipe.c \
+    src/core/iomgr/wakeup_fd_posix.c \
     src/core/statistics/census_init.c \
     src/core/statistics/census_log.c \
     src/core/statistics/census_rpc_stats.c \
@@ -1963,10 +1963,10 @@
 objs/$(CONFIG)/src/core/iomgr/tcp_posix.o: 
 objs/$(CONFIG)/src/core/iomgr/tcp_server_posix.o: 
 objs/$(CONFIG)/src/core/iomgr/time_averaged_stats.o: 
-objs/$(CONFIG)/src/core/iomgr/wakeup_fd.o: 
 objs/$(CONFIG)/src/core/iomgr/wakeup_fd_eventfd.o: 
 objs/$(CONFIG)/src/core/iomgr/wakeup_fd_nospecial.o: 
 objs/$(CONFIG)/src/core/iomgr/wakeup_fd_pipe.o: 
+objs/$(CONFIG)/src/core/iomgr/wakeup_fd_posix.o: 
 objs/$(CONFIG)/src/core/statistics/census_init.o: 
 objs/$(CONFIG)/src/core/statistics/census_log.o: 
 objs/$(CONFIG)/src/core/statistics/census_rpc_stats.o: