diff --git a/librefi/librefi.py b/librefi/librefi.py
index 276df5e..5221166 100644
--- a/librefi/librefi.py
+++ b/librefi/librefi.py
@@ -72,7 +72,7 @@ class LibreFi:
                     fxcker = fxck_element[1]
                     break
         if fxcker:
-            self.log.info("Switching fxcker to " + fxcker.FXCKER_KEY)
+            self.log.info("Switching fxcker to {}".format(fxcker.FXCKER_KEY))
             self.current_fxcker = fxcker(
                 logger=self.logger, log_level=self.log_level)
         return self.current_fxcker