diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 95727a816a..b08276bdf8 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -862,9 +862,9 @@ abi_long do_brk(abi_ulong brk_val)
      */
     if (new_host_brk_page > brk_page) {
         new_alloc_size = new_host_brk_page - brk_page;
-        mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
-                                        PROT_READ|PROT_WRITE,
-                                        MAP_ANON|MAP_PRIVATE, 0, 0));
+        mapped_addr = target_mmap(brk_page, new_alloc_size,
+                                  PROT_READ | PROT_WRITE,
+                                  MAP_ANON | MAP_PRIVATE, -1, 0);
     } else {
         new_alloc_size = 0;
         mapped_addr = brk_page;