diff --git a/jenkins/base.sh b/jenkins/base.sh
index c7175e6e52..1b28028541 100644
--- a/jenkins/base.sh
+++ b/jenkins/base.sh
@@ -1,3 +1,4 @@
+#! /bin/bash
 
 function github_status {
     gcli status create mitx mitx $GIT_COMMIT \
diff --git a/jenkins/test_edge.sh b/jenkins/test_edge.sh
index 51d24bc6f6..cb6678c04c 100755
--- a/jenkins/test_edge.sh
+++ b/jenkins/test_edge.sh
@@ -3,7 +3,7 @@
 set -e
 set -x
 
-source base.sh
+source jenkins/base.sh
 
 github_mark_failed_on_exit
 github_status state:pending
diff --git a/jenkins/test_lms.sh b/jenkins/test_lms.sh
index 13d7ffb885..257609e80d 100755
--- a/jenkins/test_lms.sh
+++ b/jenkins/test_lms.sh
@@ -3,7 +3,7 @@
 set -e
 set -x
 
-source base.sh
+source jenkins/base.sh
 
 github_mark_failed_on_exit
 github_status state:pending