diff --git a/ansible/roles/mrzcpd/files/helm/templates/_config.tpl b/ansible/roles/mrzcpd/files/helm/templates/_config.tpl
index d373d34c..9f1dbca3 100644
--- a/ansible/roles/mrzcpd/files/helm/templates/_config.tpl
+++ b/ansible/roles/mrzcpd/files/helm/templates/_config.tpl
@@ -42,7 +42,7 @@
             cat /opt/tsg/scripts/prestart.sh
             
             chmod 0755 /opt/tsg/scripts/prestart.sh
-            /opt/tsg/scripts/prestart.sh
+            source /opt/tsg/scripts/prestart.sh
 
             echo PRESTART.sh has been exec......
 {{- end }}
diff --git a/ansible/roles/packet_adapter/files/helm/templates/_config.tpl b/ansible/roles/packet_adapter/files/helm/templates/_config.tpl
index b47afe9e..e6096380 100644
--- a/ansible/roles/packet_adapter/files/helm/templates/_config.tpl
+++ b/ansible/roles/packet_adapter/files/helm/templates/_config.tpl
@@ -116,7 +116,7 @@
             cat /opt/tsg/scripts/prestart.sh
             
             chmod 0755 /opt/tsg/scripts/prestart.sh
-            /opt/tsg/scripts/prestart.sh
+            source /opt/tsg/scripts/prestart.sh
 
             echo PRESTART.sh has been exec......
 {{- end }}
diff --git a/ansible/roles/traffic-engine/files/helm/templates/deployment-firewall.yaml b/ansible/roles/traffic-engine/files/helm/templates/deployment-firewall.yaml
index 634b18ca..4c08383f 100644
--- a/ansible/roles/traffic-engine/files/helm/templates/deployment-firewall.yaml
+++ b/ansible/roles/traffic-engine/files/helm/templates/deployment-firewall.yaml
@@ -62,7 +62,7 @@ spec:
             cat /opt/tsg/scripts/prestart.sh
             
             chmod 0755 /opt/tsg/scripts/prestart.sh
-            /opt/tsg/scripts/prestart.sh
+            source /opt/tsg/scripts/prestart.sh
 
             echo PRESTART.sh has been exec......
             {{- end }}
diff --git a/ansible/roles/traffic-engine/files/helm/templates/deployment-proxy.yaml b/ansible/roles/traffic-engine/files/helm/templates/deployment-proxy.yaml
index 36944efd..e21d33a5 100644
--- a/ansible/roles/traffic-engine/files/helm/templates/deployment-proxy.yaml
+++ b/ansible/roles/traffic-engine/files/helm/templates/deployment-proxy.yaml
@@ -56,7 +56,7 @@ spec:
             cat /opt/tsg/scripts/prestart.sh
             
             chmod 0755 /opt/tsg/scripts/prestart.sh
-            /opt/tsg/scripts/prestart.sh
+            source /opt/tsg/scripts/prestart.sh
 
             echo PRESTART.sh has been exec......
             {{- end }}
diff --git a/ansible/roles/traffic-engine/files/helm/templates/deployment-service-chaining.yaml b/ansible/roles/traffic-engine/files/helm/templates/deployment-service-chaining.yaml
index 7ff0f862..574da47f 100644
--- a/ansible/roles/traffic-engine/files/helm/templates/deployment-service-chaining.yaml
+++ b/ansible/roles/traffic-engine/files/helm/templates/deployment-service-chaining.yaml
@@ -56,7 +56,7 @@ spec:
             cat /opt/tsg/scripts/prestart.sh
             
             chmod 0755 /opt/tsg/scripts/prestart.sh
-            /opt/tsg/scripts/prestart.sh
+            source /opt/tsg/scripts/prestart.sh
 
             echo PRESTART.sh has been exec......
             {{- end }}
diff --git a/ansible/roles/traffic-engine/files/helm/templates/deployment-shaping.yaml b/ansible/roles/traffic-engine/files/helm/templates/deployment-shaping.yaml
index a7403dda..87cc76ff 100644
--- a/ansible/roles/traffic-engine/files/helm/templates/deployment-shaping.yaml
+++ b/ansible/roles/traffic-engine/files/helm/templates/deployment-shaping.yaml
@@ -70,7 +70,7 @@ spec:
             cat /opt/tsg/scripts/prestart.sh
             
             chmod 0755 /opt/tsg/scripts/prestart.sh
-            /opt/tsg/scripts/prestart.sh
+            source /opt/tsg/scripts/prestart.sh
 
             echo PRESTART.sh has been exec......
             {{- end }}