diff --git a/pyerrors/input/hadrons.py b/pyerrors/input/hadrons.py
index 692732f1..400898af 100644
--- a/pyerrors/input/hadrons.py
+++ b/pyerrors/input/hadrons.py
@@ -12,7 +12,7 @@ def _get_files(path, filestem, idl):
     ls = os.listdir(path)
 
     # Clean up file list
-    files = list(filter(lambda x: x.startswith(filestem), ls))
+    files = list(filter(lambda x: x.startswith(filestem + "."), ls))
 
     if not files:
         raise Exception('No files starting with', filestem, 'in folder', path)