diff --git a/log/model_valuer.go b/log/model_valuer.go
index 81a57b1a..be124832 100644
--- a/log/model_valuer.go
+++ b/log/model_valuer.go
@@ -3,6 +3,7 @@ package log
 import (
 	"encoding/base64"
 	"fmt"
+	"reflect"
 	"strings"
 	"time"
 )
@@ -93,6 +94,10 @@ func ByteBase64(b []byte) Valuer {
 }
 
 func Stringer(s fmt.Stringer) Valuer {
+	if v := reflect.ValueOf(s); v.Kind() == reflect.Pointer && v.IsNil() {
+		return &any{nil}
+	}
+
 	return &any{s.String()}
 }
 
diff --git a/log/model_valuer_test.go b/log/model_valuer_test.go
index 33741d85..20ab6d37 100644
--- a/log/model_valuer_test.go
+++ b/log/model_valuer_test.go
@@ -52,4 +52,14 @@ func TestValuer_Stringer(t *testing.T) {
 	}).Log("log with .String() key/value pair")
 
 	require.Contains(t, out.String(), `mode=PRODUCTION`)
+
+	out, logger = log.NewBufferLogger()
+
+	var n *Mode
+
+	logger.With(log.Fields{
+		"mode": log.Stringer(n),
+	}).Log("log with nil .String() key/value pair")
+
+	require.Contains(t, out.String(), `mode=null`)
 }