diff --git a/test/maple_test/test.py b/test/maple_test/test.py
index bfa32e6cd0299c50240c8a265e2959517ea39e92..2c59c34e014e2df4f3c435a634920597da104de6 100644
--- a/test/maple_test/test.py
+++ b/test/maple_test/test.py
@@ -17,9 +17,9 @@
 import shlex
 from functools import total_ordering
 
-from maple_test.utils import PASS, EXEC_FLAG, EXPECT_FLAG, DEPENDENCE_FLAG
+from maple_test.utils import PASS, EXEC_FLAG, ERRCHECK_FLAG, EXPECT_FLAG, DEPENDENCE_FLAG
 from maple_test.utils import read_file
-from maple_test.utils import split_comment, filter_line
+from maple_test.utils import split_comment, filter_line, filter_command_line
 from maple_test.utils import FAIL, UNRESOLVED
 
 
@@ -79,7 +79,7 @@ def extract_commands(comment_lines):
     flag = False
     merge_command = ""
     for command in comment_lines:
-        command = filter_line(command, EXEC_FLAG)
+        command = filter_command_line(command)
         if not command:
             continue
         if command.strip()[-1] == "\\":
diff --git a/test/maple_test/utils.py b/test/maple_test/utils.py
index f4d7c1b4be5da517002d644161f0d7657449cf4f..51054dbede9012cf03636f93c7d8df498fe3abcb 100644
--- a/test/maple_test/utils.py
+++ b/test/maple_test/utils.py
@@ -27,6 +27,7 @@ from functools import wraps
 from pathlib import Path
 
 EXEC_FLAG = "EXEC"
+ERRCHECK_FLAG = "ERRCHECK"
 ASSERT_FLAG = "ASSERT"
 EXPECT_FLAG = "EXPECT"
 DEPENDENCE_FLAG = "DEPENDENCE"
@@ -138,11 +139,25 @@ def filter_line(line, flag=None):
         return line
     line_flag = line.strip().split(":")[0].strip()
     if line_flag == flag:
-        new_line = line.strip()[len(flag) + 1 :].strip().lstrip(":").strip()
+        new_line = line.strip()[len(flag) + 1:].strip().lstrip(":").strip()
         return new_line
     return None
 
 
+def filter_command_line(line):
+    """Returns and updates the command line starting with the flag"""
+    line_flag = line.strip().split(":")[0].strip()
+    new_line = line.strip()[len(line_flag) + 1:].strip().lstrip(":").strip()
+    if line_flag == EXEC_FLAG:
+        return new_line
+    elif line_flag == ERRCHECK_FLAG:
+        if platform.system() == "Windows":
+            return new_line + " 2>&1 1>$NUL | compare %f"
+        else:
+            return new_line + " 2>&1 1>/dev/null | compare %f"
+    return None
+
+
 def split_comment(comment, lines):
     """Split text based on comments"""
     comment_lines = []