diff --git a/papi/config.py b/papi/config.py
index 2bf1bd4..b476452 100644
--- a/papi/config.py
+++ b/papi/config.py
@@ -11,7 +11,7 @@ def read_config(*, pattern="*"):
     paths = []
     for relpath in glob.glob(f"confs/{pattern}.ini"):
         if "/api_client" in relpath:
-            logger.info("Found api client {relpath} to add")
+            logger.info(f"Found api client {relpath} to add")
         paths.append(os.path.abspath(relpath))
     res = []
     for path in paths: