diff --git a/cmd/certspotter/main.go b/cmd/certspotter/main.go
index 4055d0f..d0cf51f 100644
--- a/cmd/certspotter/main.go
+++ b/cmd/certspotter/main.go
@@ -67,7 +67,7 @@ func dnsLabelMatches (certLabel string, watchLabel string) bool {
 	return certLabel == "*" ||
 	       certLabel == "?" ||
 	       certLabel == certspotter.UnparsableDNSLabelPlaceholder ||
-	       certspotter.MatchWildcard(certLabel, watchLabel)
+	       certspotter.MatchesWildcard(watchLabel, certLabel)
 }
 
 func dnsNameMatches (dnsName []string, watchDomain []string) bool {
diff --git a/helpers.go b/helpers.go
index 964018b..b1cf70e 100644
--- a/helpers.go
+++ b/helpers.go
@@ -400,10 +400,10 @@ func WriteCertRepository (repoPath string, isPrecert bool, certs [][]byte) (bool
 	return false, path, nil
 }
 
-func MatchWildcard (pattern string, dnsName string) bool {
+func MatchesWildcard (dnsName string, pattern string) bool {
 	for len(pattern) > 0 {
 		if pattern[0] == '*' {
-			if len(dnsName) > 0 && dnsName[0] != '.' && MatchWildcard(pattern, dnsName[1:]) {
+			if len(dnsName) > 0 && dnsName[0] != '.' && MatchesWildcard(dnsName[1:], pattern) {
 				return true
 			}
 			pattern = pattern[1:]