diff --git a/jvb/rootfs/defaults/jvb.conf b/jvb/rootfs/defaults/jvb.conf
index cd270b2..2b15866 100644
--- a/jvb/rootfs/defaults/jvb.conf
+++ b/jvb/rootfs/defaults/jvb.conf
@@ -129,7 +129,7 @@ videobridge {
 jmt {
     bwe {
         estimator {
-            engine = "${{ .Env.BWE_ESTIMATOR_ENGINE | default "GoogleCc" }}"
+            engine = "{{ .Env.BWE_ESTIMATOR_ENGINE | default "GoogleCc" }}"
         }
     }
 }