diff --git a/src/examples/test/test.go b/src/examples/test/test.go
index d1130689..7a9bb781 100644
--- a/src/examples/test/test.go
+++ b/src/examples/test/test.go
@@ -85,7 +85,7 @@ func main() {
 	}, 3)
 
 	// test library functions
-	println("lower to upper char:", 'h', "->", unicode.ToUpper('h'))
+	println("lower to upper char:", string('h'), "->", string(unicode.ToUpper('h')))
 }
 
 func runFunc(f func(int), arg int) {