diff --git a/test_regress/driver.pl b/test_regress/driver.pl
index 541fb296f..968b89f81 100755
--- a/test_regress/driver.pl
+++ b/test_regress/driver.pl
@@ -1110,11 +1110,6 @@ sub compile {
             return 1;
         }
 
-        if ($self->{vltmt} && !$self->cfg_with_threaded) {
-            $self->skip("Test requires Verilator configured with threads\n");
-            return 1;
-        }
-
         if ($param{verilator_make_cmake} && !$self->have_cmake) {
             $self->skip("Test requires CMake; ignore error since not available or version too old\n");
             return 1;
@@ -2340,10 +2335,6 @@ sub cxx_version {
     return $_Cxx_Version;
 }
 
-sub cfg_with_threaded {
-    return 1;  # C++11 now always required
-}
-
 our $_Cfg_with_ccache;
 
 sub cfg_with_ccache {
diff --git a/test_regress/t/t_verilated_all.pl b/test_regress/t/t_verilated_all.pl
index 1a8bc4469..450b5bd9c 100755
--- a/test_regress/t/t_verilated_all.pl
+++ b/test_regress/t/t_verilated_all.pl
@@ -17,10 +17,8 @@ compile(
     verilator_flags2 => ["--cc",
                          "--coverage-toggle --coverage-line --coverage-user",
                          "--trace --vpi ",
-                         ($Self->cfg_with_threaded
-                          ? "--threads 2 $root/include/verilated_threads.cpp" : ""),
-                         ($Self->cfg_with_threaded
-                          ? "--trace-threads 1" : ""),
+                         "--threads 2",
+                         "--trace-threads 1",
                          "--prof-exec", "--prof-pgo",
                          "$root/include/verilated_save.cpp"],
     );
@@ -58,7 +56,7 @@ foreach my $file (sort keys %hit) {
         && $file !~ /_sc/
         && $file !~ /_fst/
         && $file !~ /_heavy/
-        && ($file !~ /_thread/ || $Self->cfg_with_threaded)) {
+        && ($file !~ /_thread/)) {
         error("Include file not covered by t_verilated_all test: ", $file);
     }
 }