diff --git a/src/local_bip85/__init__.py b/src/local_bip85/__init__.py
index c82e437..36da833 100644
--- a/src/local_bip85/__init__.py
+++ b/src/local_bip85/__init__.py
@@ -9,7 +9,7 @@ try:
 
     logger.info("BIP85 module imported successfully.")
 except Exception as e:
-    logger.error("Failed to import BIP85 module: %s", e, exc_info=True)
+    logger.error(f"Failed to import BIP85 module: {e}", exc_info=True)
     BIP85 = None
 
 __all__ = ["BIP85"] if BIP85 is not None else []