diff --git a/arteria/models/runfolder_utils.py b/arteria/models/runfolder_utils.py
index aea41b9..8257f71 100644
--- a/arteria/models/runfolder_utils.py
+++ b/arteria/models/runfolder_utils.py
@@ -31,7 +31,7 @@ def list_runfolders(monitored_directories, filter_key=lambda r: True):
             if (
                     e.args[0]
                     == (
-                        "File [Rr]unParameters.xml not found in runfolder"
+                        "File [Rr]unParameters.xml not found in runfolder "
                         f"{monitored_runfolders_path}"
                     )
             ):