diff --git a/builder/vmware/driver_workstation9.go b/builder/vmware/driver_workstation9.go
index e27cafa25..eb41d9481 100644
--- a/builder/vmware/driver_workstation9.go
+++ b/builder/vmware/driver_workstation9.go
@@ -90,11 +90,11 @@ func (d *Workstation9LinuxDriver) Verify() error {
 	}
 
 	if err := d.findVmrun(); err != nil {
-		return fmt.Errorf("Critical application 'vmrun' not found in path.")
+		return fmt.Errorf("Required application 'vmrun' not found in path.")
 	}
 
 	if err := d.findVdiskManager(); err != nil {
-		return fmt.Errorf("Critical application 'vmware-vdiskmanager' not found in path.")
+		return fmt.Errorf("Required application 'vmware-vdiskmanager' not found in path.")
 	}
 
 	return nil