diff --git a/README.md b/README.md
index 7534aa8..b3dc4b6 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ At a high level, it works like this:
   ConfigMap mounts with the same name and turning them into an ISO
   presented to the guest.
 
-The startvm entry-point supports several environment variables:
+The startvm.sh entry-point supports several environment variables:
 
 * `IMG_SOURCE` which is an http or https URL that contains a qcow2
   image.  It can also be a full path to a local file baked into the
diff --git a/README.rst b/README.rst
index 8734ba9..8d0ef85 100644
--- a/README.rst
+++ b/README.rst
@@ -79,7 +79,7 @@ At a high level, it works like this:
     ConfigMap mounts with the same name and turning them into an ISO
     presented to the guest.
 
-The startvm entry-point supports several environment variables:
+The startvm.sh entry-point supports several environment variables:
 
   * `IMG_SOURCE` which is an http or https URL that contains a qcow2
     image.  It can also be a full path to a local file baked into the
diff --git a/berth/templates/bin/_startvm.txt b/berth/templates/bin/_startvm.sh.tpl
similarity index 100%
rename from berth/templates/bin/_startvm.txt
rename to berth/templates/bin/_startvm.sh.tpl
diff --git a/berth/templates/iter-configmap.yaml b/berth/templates/iter-configmap.yaml
index 2b2fcff..4840621 100644
--- a/berth/templates/iter-configmap.yaml
+++ b/berth/templates/iter-configmap.yaml
@@ -14,8 +14,8 @@ kind: ConfigMap
 metadata:
   name: configmap-generic-startvm
 data:
-  startvm: |
-{{ tuple "bin/_startvm.txt" . | include "template" | indent 4 }}
+  startvm.sh: |
+{{ tuple "bin/_startvm.sh.tpl" . | include "template" | indent 4 }}
 
 ---
 
diff --git a/berth/templates/iter-deployment.yaml b/berth/templates/iter-deployment.yaml
index e615a98..fecd008 100644
--- a/berth/templates/iter-deployment.yaml
+++ b/berth/templates/iter-deployment.yaml
@@ -41,7 +41,7 @@ spec:
           securityContext:
             privileged: true
           command:
-            - /usr/local/bin/startvm
+            - /startvm.sh
 {{- if $vm.netconfig.ports }}
           ports:
 {{- range $for, $port := $vm.netconfig.ports }}
@@ -55,8 +55,8 @@ spec:
 {{- end }}
           volumeMounts:
             - name: volume-startvm
-              mountPath: /usr/local/bin/startvm
-              subPath: startvm
+              mountPath: /startvm.sh
+              subPath: startvm.sh
             - name: image
               mountPath: /image
             - name: dev
@@ -73,7 +73,7 @@ spec:
         - name: volume-startvm
           configMap:
             name: configmap-generic-startvm
-            defaultMode: 0755
+            defaultMode: 0555
         - name: image
           persistentVolumeClaim:
             claimName: {{ $name }}