diff --git a/scripts/cleanup-trace-events.pl b/scripts/cleanup-trace-events.pl
index e93abc00da..d4f0e4cab5 100755
--- a/scripts/cleanup-trace-events.pl
+++ b/scripts/cleanup-trace-events.pl
@@ -13,6 +13,7 @@
 
 use warnings;
 use strict;
+use File::Basename;
 
 my $buf = '';
 my %seen = ();
@@ -23,12 +24,19 @@ sub out {
     %seen = ();
 }
 
-while (<>) {
-    if (/^(disable )?([a-z_0-9]+)\(/) {
-        open GREP, '-|', 'git', 'grep', '-lw', "trace_$2"
+$#ARGV == 0 or die "usage: $0 FILE";
+my $in = $ARGV[0];
+my $dir = dirname($in);
+open(IN, $in) or die "open $in: $!";
+chdir($dir) or die "chdir $dir: $!";
+
+while (<IN>) {
+    if (/^(disable |(tcg) |vcpu )*([a-z_0-9]+)\(/i) {
+        my $pat = "trace_$3";
+        $pat .= '_tcg' if (defined $2);
+        open GREP, '-|', 'git', 'grep', '-lw', '--max-depth', '1', $pat
             or die "run git grep: $!";
-        my $fname;
-        while ($fname = <GREP>) {
+        while (my $fname = <GREP>) {
             chomp $fname;
             next if $seen{$fname} || $fname eq 'trace-events';
             $seen{$fname} = 1;
@@ -49,3 +57,4 @@ while (<>) {
 }
 
 out;
+close(IN) or die "close $in: $!";