iplist/iplist.go | 4 +++-

diff --git a/iplist/iplist.go b/iplist/iplist.go
index 4827f871949123ce3f9e2ec3cf33dfe3770da54a..5467c33055f177011307172e413526ebbf67c10d 100644
--- a/iplist/iplist.go
+++ b/iplist/iplist.go
@@ -50,6 +50,8 @@ 	}
 	return
 }
 
+var p2pBlocklistLineRe = regexp.MustCompile(`(.*):([\d.]+)-([\d.]+)`)
+
 // Parse a line of the PeerGuardian Text Lists (P2P) Format. Returns !ok but
 // no error if a line doesn't contain a range but isn't erroneous, such as
 // comment and blank lines.
@@ -58,7 +60,7 @@ 	l = strings.TrimSpace(l)
 	if l == "" || strings.HasPrefix(l, "#") {
 		return
 	}
-	sms := regexp.MustCompile(`(.*):([\d.]+)-([\d.]+)`).FindStringSubmatch(l)
+	sms := p2pBlocklistLineRe.FindStringSubmatch(l)
 	if sms == nil {
 		err = fmt.Errorf("error parsing %q", l)
 		return