diff --git a/tools/regression-tests/config_serial.yaml b/tools/regression-tests/config_serial.yaml
index 746e74f226..ce984bb2b8 100644
--- a/tools/regression-tests/config_serial.yaml
+++ b/tools/regression-tests/config_serial.yaml
@@ -36,7 +36,7 @@
       in.bucky-plus-cnt*,
     ]
 
-  timeout: 60
+  timeout: 10
   nugget: 1.0
   epsilon: 1e-16
 
diff --git a/tools/regression-tests/run_tests.py b/tools/regression-tests/run_tests.py
index f2d41af9de..d2a4559010 100644
--- a/tools/regression-tests/run_tests.py
+++ b/tools/regression-tests/run_tests.py
@@ -163,6 +163,7 @@ def iterate(lmp_binary, input_folder, input_list, config, results, progress_file
             matched_pattern = False
             for skipped_files in config['skip']:
                 if '*' in skipped_files:
+                    # check input script name e.g. in.*_imd*
                     if fnmatch.fnmatch(input, skipped_files):
                         matched_pattern = True
                         break