diff --git a/scripts/docker-install-phase3c.bash b/scripts/docker-install-phase3c.bash
index 7876b65..4ab74dc 100755
--- a/scripts/docker-install-phase3c.bash
+++ b/scripts/docker-install-phase3c.bash
@@ -25,6 +25,9 @@ mongodb
 # MUMPS
 fis-gtm
 
+# Mustache
+ruby-mustache
+
 # MySQL
 mysql-server