diff --git a/libc/bionic/eventfd_read.cpp b/libc/bionic/eventfd.cpp
similarity index 82%
rename from libc/bionic/eventfd_read.cpp
rename to libc/bionic/eventfd.cpp
index 50e73fd..f13c6a3 100644
--- a/libc/bionic/eventfd_read.cpp
+++ b/libc/bionic/eventfd.cpp
@@ -29,6 +29,18 @@
 #include <sys/eventfd.h>
 #include <unistd.h>
 
+#include "private/bionic_fdtrack.h"
+
+extern "C" int __eventfd(unsigned int initval, int flags);
+
+int eventfd(unsigned int initval, int flags) {
+  return FDTRACK_CREATE(__eventfd(initval, flags));
+}
+
 int eventfd_read(int fd, eventfd_t* value) {
   return (read(fd, value, sizeof(*value)) == sizeof(*value)) ? 0 : -1;
 }
+
+int eventfd_write(int fd, eventfd_t value) {
+  return (write(fd, &value, sizeof(value)) == sizeof(value)) ? 0 : -1;
+}
diff --git a/libc/bionic/eventfd_write.cpp b/libc/bionic/eventfd_write.cpp
index 3c3d3f1..6d86d8c 100644
--- a/libc/bionic/eventfd_write.cpp
+++ b/libc/bionic/eventfd_write.cpp
@@ -29,6 +29,3 @@
 #include <sys/eventfd.h>
 #include <unistd.h>
 
-int eventfd_write(int fd, eventfd_t value) {
-  return (write(fd, &value, sizeof(value)) == sizeof(value)) ? 0 : -1;
-}