diff --git a/decoder.go b/decoder.go
index ac89b07..147023d 100644
--- a/decoder.go
+++ b/decoder.go
@@ -49,7 +49,7 @@ func Unmarshal(schema Schema, data []byte, v any) error {
 	return DefaultConfig.Unmarshal(schema, data, v)
 }
 
-// Whether the decoder's reader has reached EOF.
-func (d *Decoder) IsEof() bool {
-	return d.r.Error == io.EOF
+// IsEOF returns Whether the decoder's reader has reached EOF.
+func (d *Decoder) IsEOF() bool {
+	return errors.Is(d.r.Error, io.EOF)
 }
diff --git a/decoder_array_test.go b/decoder_array_test.go
index dfb1b7c..dd9fc68 100644
--- a/decoder_array_test.go
+++ b/decoder_array_test.go
@@ -117,6 +117,6 @@ func TestDecoder_ArrayEof(t *testing.T) {
 
 	var got []bool
 	err = dec.Decode(&got)
-	assert.True(t, dec.IsEof())
+	assert.True(t, dec.IsEOF())
 	assert.NoError(t, err)
 }
diff --git a/decoder_test.go b/decoder_test.go
index d4253ce..c090fb2 100644
--- a/decoder_test.go
+++ b/decoder_test.go
@@ -79,7 +79,7 @@ func TestDecoder_DecodeEOFDoesntReturnError(t *testing.T) {
 	err := dec.Decode(&i)
 
 	assert.NoError(t, err)
-	assert.True(t, dec.IsEof())
+	assert.True(t, dec.IsEOF())
 }
 
 func TestUnmarshal(t *testing.T) {