diff --git a/tb/shinTest/check_testcase.py b/tb/shinTest/check_testcase.py
index e6fde60..cb7fb3f 100755
--- a/tb/shinTest/check_testcase.py
+++ b/tb/shinTest/check_testcase.py
@@ -56,9 +56,13 @@ def compare_files(source_file, target_file):
             tgt_values = tgt_line.strip().split()
 
             if len(src_values) != len(tgt_values):
-                print(f"Error: Line {i+1}: The number of values in {source_file} and {target_file} do not match.")
-                all_match = False
-                continue
+                if len(src_values) != 1:
+                    print(f"Error: Line {i+1}: The number of values in {source_file} and {target_file} do not match.")
+                    all_match = False
+                    continue
+                else:
+                    if src_values[0].strip().lower() == 'x':
+                        continue
 
             line_match = True