diff --git a/test_regress/driver.py b/test_regress/driver.py
index 19e325aff..93040ee28 100755
--- a/test_regress/driver.py
+++ b/test_regress/driver.py
@@ -451,7 +451,7 @@ class Runner:
             makecmd = VtOs.getenv_def('VERILATOR_MAKE', os.environ['MAKE']) + " &&"
             upperdir = 'test_regress/' if re.search(r'test_regress', os.getcwd()) else ''
             self.fail_msgs.append("\t#" + test.soprint("%Error: " + error_msg) + "\t\t" + makecmd +
-                                  " " + upperdir + test.py_filename +
+                                  " " + upperdir + test.py_filename + ' ' +
                                   ' '.join(self._manual_args()) + " --" + test.scenario + "\n")
             self.fail_tests.append(test)
             self.fail_cnt += 1
diff --git a/test_regress/t/t_timing_fork_comb.py b/test_regress/t/t_timing_fork_comb.py
index 421aad299..cf21ef4d2 100755
--- a/test_regress/t/t_timing_fork_comb.py
+++ b/test_regress/t/t_timing_fork_comb.py
@@ -11,13 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-# Should convert the first always into combo and detect cycle
-test.compile(fails=True, verilator_flags2=["--timing"])
-
-test.file_grep(
-    test.compile_log_filename,
-    r'%Warning-UNOPTFLAT: t/t_timing_fork_comb.v:\d+:\d+: Signal unoptimizable: Circular combinational logic:'
-)
+test.compile(verilator_flags2=["--exe --main --timing -Wno-UNOPTFLAT"])
 
 test.execute()
 
diff --git a/test_regress/t/t_timing_fork_comb_bad.py b/test_regress/t/t_timing_fork_comb_bad.py
index eceb2e20f..1b5d6f77c 100755
--- a/test_regress/t/t_timing_fork_comb_bad.py
+++ b/test_regress/t/t_timing_fork_comb_bad.py
@@ -9,11 +9,15 @@
 
 import vltest_bootstrap
 
-test.scenarios('simulator')
+test.scenarios('vlt')
 test.top_filename = "t/t_timing_fork_comb.v"
 
-test.compile(verilator_flags2=["--exe --main --timing -Wno-UNOPTFLAT"])
+# Should convert the first always into combo and detect cycle
+test.lint(fails=True, verilator_flags2=["--timing"])
 
-test.execute()
+test.file_grep(
+    test.compile_log_filename,
+    r'%Warning-UNOPTFLAT: t/t_timing_fork_comb.v:\d+:\d+: Signal unoptimizable: Circular combinational logic:'
+)
 
 test.passes()