diff --git a/bin/verilator b/bin/verilator
index ecfa11adc..a0e1e9ecd 100755
--- a/bin/verilator
+++ b/bin/verilator
@@ -174,10 +174,10 @@ sub run {
 	    warn "%Error: export VERILATOR_ROOT=".($ENV{VERILATOR_ROOT}||"")."\n";
 	    warn "%Error: $command\n";
 	}
-	if ($status & 255) {
-	    if (($status & 255) == 8 || ($status & 255) == 11) { # SIGFPA or SIGSEGV
+	if ($status & 127) {
+	    if (($status & 127) == 8 || ($status & 127) == 11) { # SIGFPA or SIGSEGV
 		warn "%Error: Verilator internal fault, sorry.  Consider trying --debug --gdbbt\n" if !$Debug;
-	    } elsif (($status & 255) == 6) {  # SIGABRT
+	    } elsif (($status & 127) == 6) {  # SIGABRT
 		warn "%Error: Verilator aborted.  Consider trying --debug --gdbbt\n" if !$Debug;
 	    } else {
 		warn "%Error: Verilator threw signal $status.  Consider trying --debug --gdbbt\n" if !$Debug;