diff --git a/nilreader.go b/nilreader.go
new file mode 100644
index 0000000..4e9cea7
--- /dev/null
+++ b/nilreader.go
@@ -0,0 +1,16 @@
+package utf8s
+
+type NilReaderComplainer interface {
+	error
+	NilReaderComplainer()
+}
+
+type internalNilReaderComplainer struct{}
+
+func (complainer internalNilReaderComplainer) Error() string {
+	return "Nil Reader"
+}
+
+func (complainer internalNilReaderComplainer) NilReaderComplainer() {
+	// Nothing here.
+}