diff --git a/cloudinit/sources/helpers/vmware/imc/guestcust_util.py b/cloudinit/sources/helpers/vmware/imc/guestcust_util.py
index a270d9f..816f52e 100644
--- a/cloudinit/sources/helpers/vmware/imc/guestcust_util.py
+++ b/cloudinit/sources/helpers/vmware/imc/guestcust_util.py
@@ -136,8 +136,8 @@ def get_tools_config(section, key, defaultVal):
     cmd = ['vmware-toolbox-cmd', 'config', 'get', section, key]
 
     try:
-        (outText, _) = subp.subp(cmd)
-    except subp.ProcessExecutionError as e:
+        (outText, _) = util.subp(cmd)
+    except util.ProcessExecutionError as e:
         if e.exit_code == 69:
             logger.debug(
                 "vmware-toolbox-cmd returned 69 (unavailable) for cmd: %s."