diff --git a/quantile/example_test.go b/quantile/example_test.go
index cf37ece..adde1d2 100644
--- a/quantile/example_test.go
+++ b/quantile/example_test.go
@@ -55,7 +55,7 @@
 	for samples := range ch {
 		q.Merge(samples)
 	}
-	fmt.Println("perc50:", q.Query(0.90))
+	fmt.Println("perc90:", q.Query(0.90))
 }
 
 func Example_window() {