diff --git a/var/spack/repos/builtin/packages/mawk/package.py b/var/spack/repos/builtin/packages/mawk/package.py
index 864e76b8f3e..f0ab32cecf6 100644
--- a/var/spack/repos/builtin/packages/mawk/package.py
+++ b/var/spack/repos/builtin/packages/mawk/package.py
@@ -12,6 +12,7 @@ class Mawk(AutotoolsPackage):
     homepage = "http://invisible-island.net/mawk/mawk.html"
     url      = "http://invisible-mirror.net/archives/mawk/mawk-1.3.4.tgz"
 
+    version('1.3.4-20171017', sha256='db17115d1ed18ed1607c8b93291db9ccd4fe5e0f30d2928c3c5d127b23ec9e5b')
     version('1.3.4', 'b1d27324ae80302452d0fa0c98447b65')
 
     provides('awk')