diff --git a/src/core/iomgr/fd_posix.h b/src/core/iomgr/fd_posix.h
index ae85550abab..523d040d170 100644
--- a/src/core/iomgr/fd_posix.h
+++ b/src/core/iomgr/fd_posix.h
@@ -160,8 +160,6 @@ void grpc_fd_become_readable(grpc_fd *fd, int allow_synchronous_callback);
 void grpc_fd_become_writable(grpc_fd *fd, int allow_synchronous_callback);
 
 /* Reference counting for fds */
-#define GRPC_FD_REF_COUNT_DEBUG
-
 #ifdef GRPC_FD_REF_COUNT_DEBUG
 void grpc_fd_ref(grpc_fd *fd, const char *reason, const char *file, int line);
 void grpc_fd_unref(grpc_fd *fd, const char *reason, const char *file, int line);