diff --git a/memcheck/tests/mips64/filter_stderr b/memcheck/tests/mips64/filter_stderr
index a778e971f..0a632fdb2 100755
--- a/memcheck/tests/mips64/filter_stderr
+++ b/memcheck/tests/mips64/filter_stderr
@@ -1,3 +1,4 @@
 #! /bin/sh
 
-../filter_stderr "$@"
+../filter_stderr "$@" |
+    sed "s/at .* (posix_fadvise64.c:.*)/.../"