diff --git a/ognibuild/fix_build.py b/ognibuild/fix_build.py
index 7542b2b..3676534 100644
--- a/ognibuild/fix_build.py
+++ b/ognibuild/fix_build.py
@@ -70,7 +70,7 @@ def run_with_build_fixers(session: Session, args: List[str], fixers: List[BuildF
         try:
             retcode, contents = run_with_tee(session, args)
         except FileNotFoundError as e:
-            error = MissingCommand(e.args[0])
+            error = MissingCommand(args[0])
             retcode = 1
         else:
             if retcode == 0: