rounds/gemini.go | 2 +-
 tls/tlsauth.go   | 2 +-

diff --git a/rounds/gemini.go b/rounds/gemini.go
index d9f744e4b8c7beb868aff940b368d402bb57b94be7a35fca7ff34a4920dbfd43..83531019fa434823b413cffcfe1ce75e015ca622318f6692ef3e91cb61a6e315 100644
--- a/rounds/gemini.go
+++ b/rounds/gemini.go
@@ -190,7 +190,7 @@ 		log.Printf("%s: %s\n", req.URL, err)
 		fifos.LogNonOK <- msg
 		return false, err
 	}
-	contentType := strings.Split(strings.TrimRight(cols[1], "\r\n"), ";")[0]
+	contentType, _, _ := strings.Cut(strings.TrimRight(cols[1], "\r\n"), ";")
 	if contentType == ContentTypeGemini &&
 		!strings.Contains(req.Header.Get("Accept"), ContentTypeGemini) {
 		w.Header().Add("Content-Type", "text/html")
diff --git a/tls/tlsauth.go b/tls/tlsauth.go
index 050ed5aec747617bb9b0343fb9e4ac8ae4b380cc73251c850602f65a8452819b..a66e494a48c13169e287d2c5f828b1253f587525db336ed70000588b29a87576 100644
--- a/tls/tlsauth.go
+++ b/tls/tlsauth.go
@@ -132,7 +132,7 @@ 	lines := strings.Split(string(out), "\n")
 	if len(lines) < 1 {
 		return nil, errors.New("invalid output from authentication form")
 	}
-	t := strings.Split(lines[0], ":")[0]
+	t, _, _ := strings.Cut(lines[0], ":")
 	i, err := strconv.Atoi(t)
 	if err != nil {
 		return &tls.Certificate{}, nil