diff --git a/Workbench/scripts/refresh-this-instance.sh b/Workbench/scripts/refresh-this-instance.sh
index 8f6447e..fb84485 100755
--- a/Workbench/scripts/refresh-this-instance.sh
+++ b/Workbench/scripts/refresh-this-instance.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+. /etc/profile
+
 DELETE_VOLUMES="false"
 
 if [[ $1 == "-dv" ]]; then
diff --git a/Workbench/scripts/refreshListener.php b/Workbench/scripts/refreshListener.php
index edd2b96..a1d3222 100644
--- a/Workbench/scripts/refreshListener.php
+++ b/Workbench/scripts/refreshListener.php
@@ -13,11 +13,11 @@
     echo ' [x] Received ', $msg->body, "\n";
     if ($msg->body == "REFRESH_THIS_INSTANCE") {
         echo "Received REFRESH message!\n";
-		shell_exec( "/csp-tap/InCommonTAP-Examples/Workbench/scripts/refresh-this-instance.sh" );
+		exec( "/csp-tap/InCommonTAP-Examples/Workbench/scripts/refresh-this-instance.sh" );
 	}
     if ($msg->body == "REFRESH_THIS_INSTANCE_DELETE_DATA") {
         echo "Received REFRESH-DELETE message!\n";
-		shell_exec( "/csp-tap/InCommonTAP-Examples/Workbench/scripts/refresh-this-instance.sh -dv" );
+		exec( "/csp-tap/InCommonTAP-Examples/Workbench/scripts/refresh-this-instance.sh -dv" );
 	}
 };