diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index ed5ba25..27f0245 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -23,6 +23,7 @@
 pip install jsonpath-ng
 pip install construct
 pip install bidict
+pip install gsm0338
 
 # Execute automatically discovered unit tests first
 python -m unittest discover -v -s tests/