diff --git a/pyerrors/input/openQCD.py b/pyerrors/input/openQCD.py
index ebe7812f..5ac279b1 100644
--- a/pyerrors/input/openQCD.py
+++ b/pyerrors/input/openQCD.py
@@ -55,7 +55,7 @@ def read_rwms(path, prefix, version='2.0', names=None, **kwargs):
         break
 
     if not ls:
-        raise Exception('Error, directory not found')
+        raise Exception(f"Error, directory '{path}' not found")
     if 'files' in kwargs:
         ls = kwargs.get('files')
     else: