diff --git a/module_utils/decort_utils.py b/module_utils/decort_utils.py
index 70c2765..f6c3499 100644
--- a/module_utils/decort_utils.py
+++ b/module_utils/decort_utils.py
@@ -392,10 +392,11 @@ class DecortController(object):
                 retry_counter = retry_counter - 1
             else:
                 self.result['failed'] = True
-                self.result['msg'] = ("Error when calling DECORT API '{}', HTTP status code '{}', "
-                                      "reason '{}', parameters '{}'.").format(api_resp.url,
-                                                                              api_resp.status_code,
-                                                                              api_resp.reason, arg_params)
+                self.result['msg'] =\
+                    (f'Error when calling DECORT API {api_resp.url}'
+                     f', HTTP status code {api_resp.status_code}'
+                     f', reason "{api_resp.reason}"'
+                     f', parameters {arg_params}, text {api_resp.text}.')
                 self.amodule.fail_json(**self.result)
                 return None  # actually, this directive will never be executed as fail_json aborts the script