diff --git a/cluster/mesos/docker/socat/build.sh b/cluster/mesos/docker/socat/build.sh
index 04ba93e55c7..e74a0c35fbc 100755
--- a/cluster/mesos/docker/socat/build.sh
+++ b/cluster/mesos/docker/socat/build.sh
@@ -18,7 +18,9 @@
 
 set -o errexit
 set -o nounset
-set -o pipefailscript_dir=$(cd $(dirname "${BASH_SOURCE}") && pwd -P)
+set -o pipefail
+
+script_dir=$(cd $(dirname "${BASH_SOURCE}") && pwd -P)
 
 cd "${script_dir}"