diff --git a/cmd/jsontoml/main.go b/cmd/jsontoml/main.go
index d592e46d..eb7369e6 100644
--- a/cmd/jsontoml/main.go
+++ b/cmd/jsontoml/main.go
@@ -54,7 +54,7 @@ func convert(r io.Reader, w io.Writer) error {
 
 	if useNumber != nil && *useNumber {
 		d.UseNumber()
-		e.SetJsonNumber(true)
+		e.SetMarshalJsonNumbers(true)
 	}
 
 	err := d.Decode(&v)
diff --git a/marshaler.go b/marshaler.go
index 8be595f2..31f593e2 100644
--- a/marshaler.go
+++ b/marshaler.go
@@ -38,11 +38,11 @@ type Encoder struct {
 	w io.Writer
 
 	// global settings
-	tablesInline    bool
-	arraysMultiline bool
-	indentSymbol    string
-	indentTables    bool
-	jsonNumber      bool
+	tablesInline       bool
+	arraysMultiline    bool
+	indentSymbol       string
+	indentTables       bool
+	marshalJsonNumbers bool
 }
 
 // NewEncoder returns a new Encoder that writes to w.
@@ -89,10 +89,10 @@ func (enc *Encoder) SetIndentTables(indent bool) *Encoder {
 	return enc
 }
 
-// SetJsonNumber forces the encoder to serialize `json.Number` as a float or integer
+// SetMarshalJsonNumbers forces the encoder to serialize `json.Number` as a float or integer
 // instead of relying on TextMarshaler to emit a string.
-func (enc *Encoder) SetJsonNumber(indent bool) *Encoder {
-	enc.jsonNumber = indent
+func (enc *Encoder) SetMarshalJsonNumbers(indent bool) *Encoder {
+	enc.marshalJsonNumbers = indent
 	return enc
 }
 
@@ -262,7 +262,7 @@ func (enc *Encoder) encode(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, e
 	case LocalDateTime:
 		return append(b, x.String()...), nil
 	case json.Number:
-		if enc.jsonNumber {
+		if enc.marshalJsonNumbers {
 			if x == "" { /// Useful zero value.
 				return append(b, "0"...), nil
 			} else if v, err := x.Int64(); err == nil {
diff --git a/marshaler_test.go b/marshaler_test.go
index deb1b7bd..a31dd370 100644
--- a/marshaler_test.go
+++ b/marshaler_test.go
@@ -951,7 +951,7 @@ func TestEncoderSetIndentSymbol(t *testing.T) {
 func TestEncoderSetJsonNumber(t *testing.T) {
 	var w strings.Builder
 	enc := toml.NewEncoder(&w)
-	enc.SetJsonNumber(true)
+	enc.SetMarshalJsonNumbers(true)
 	err := enc.Encode(map[string]interface{}{
 		"A": json.Number("1.1"),
 		"B": json.Number("42e-3"),