diff --git a/kernel_tuner/cache/convert.py b/kernel_tuner/cache/convert.py
index d9179f10..6a78a43b 100644
--- a/kernel_tuner/cache/convert.py
+++ b/kernel_tuner/cache/convert.py
@@ -69,14 +69,14 @@ def convert_cache(cache: dict, conversion_functions=None, versions=None, target_
 
     if semver.VersionInfo.parse(version).compare(target_version) > 0:
         raise ValueError(
-            f"Target version ({target_version}) should not be " f"smaller than the cache's version ({version})"
+            f"Target version ({target_version}) should not be smaller than the cache's version ({version})"
         )
 
     if version not in versions:
-        raise ValueError(f"Version ({version}) should be a real " f"existing version")
+        raise ValueError(f"Version ({version}) should be a real existing version")
 
     if target_version not in versions:
-        raise ValueError(f"Target version ({target_version}) should be " f"a real existing version")
+        raise ValueError(f"Target version ({target_version}) should be a real existing version")
 
     # Main convert loop
     while version != target_version:
diff --git a/kernel_tuner/scripts/ktcache.py b/kernel_tuner/scripts/ktcache.py
index 402d1f6b..fa82e148 100644
--- a/kernel_tuner/scripts/ktcache.py
+++ b/kernel_tuner/scripts/ktcache.py
@@ -10,7 +10,7 @@
    - `convert`: using the functionality from convert.py one can convert to a specified version.
       Within conversion (all required yet nonpositional arguments):
          - `-i/--infile`: the input file to read from.
-         - `-T/--target`: The version to convert to. 
+         - `-T/--target`: The version to convert to.
          - `--out/--output`: The converted output file.
          - `--force-version-absence`: allow unversioned cachefiles to be converted.