diff --git a/doc/articles/laws_of_reflection.html b/doc/articles/laws_of_reflection.html
index ca729508bb..a6175f73c1 100644
--- a/doc/articles/laws_of_reflection.html
+++ b/doc/articles/laws_of_reflection.html
@@ -238,7 +238,7 @@ value (from here on we'll elide the boilerplate and focus just on
 the executable code):
 </p>
 
-{{code "/doc/progs/interface2.go" `/var x/` `/STOP/`}}
+{{code "/doc/progs/interface2.go" `/START f9/` `/STOP/`}}
 
 <p>
 prints
diff --git a/doc/progs/interface2.go b/doc/progs/interface2.go
index 2deba32b46..a541d94e48 100644
--- a/doc/progs/interface2.go
+++ b/doc/progs/interface2.go
@@ -123,3 +123,10 @@ func f8() {
 	fmt.Println("t is now", t)
 	// STOP OMIT
 }
+
+func f9() {
+	// START f9 OMIT
+	var x float64 = 3.4
+	fmt.Println("value:", reflect.ValueOf(x))
+	// STOP OMIT
+}