diff --git a/ppp_connectors/helpers.py b/ppp_connectors/helpers.py
index 294ec5b..b566fff 100644
--- a/ppp_connectors/helpers.py
+++ b/ppp_connectors/helpers.py
@@ -19,7 +19,7 @@ def check_required_env_vars(config: Dict[str, str], required_vars: List[str]) ->
     missing_vars = dotenv_missing_vars | osenv_missing_vars
 
     if dotenv_missing_vars and osenv_missing_vars:
-        print(f'[!] Error: missing required environment variables: {', '.join(missing_vars)}. '
+        print(f'[!] Error: missing required environment variables: {", ".join(missing_vars)}. '
               'Please ensure these are present either in your .env file, or in the '
               'system\'s environment variables.', file=sys.stderr)
         sys.exit(1)
diff --git a/pyproject.toml b/pyproject.toml
index 9751373..0120de9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 name = "ppp-connectors"
 packages = [{ include = "ppp_connectors" }]
-version = "0.1.5"
+version = "0.1.6"
 description = "A simple, lightweight set of connectors and functions to various APIs, controlled by a central broker."
 authors = [
     "Rob D'Aveta <rob.daveta@gmail.com>",