diff --git a/sysdeps/unix/sysv/linux/bits/mman_ext.h b/sysdeps/unix/sysv/linux/bits/mman_ext.h
index 97234a7adf..5612852e64 100644
--- a/sysdeps/unix/sysv/linux/bits/mman_ext.h
+++ b/sysdeps/unix/sysv/linux/bits/mman_ext.h
@@ -21,11 +21,8 @@
 #endif
 
 #ifdef __USE_GNU
-#include <bits/types/struct_iovec.h>
-
-/*
- */
-extern __ssize_t process_madvise (int __pid_fd, const struct iovec* __iov,
+struct iovec;
+extern __ssize_t process_madvise (int __pid_fd, const struct iovec *__iov,
 				  size_t __count, int __advice,
 				  unsigned __flags)
   __THROW;