diff --git a/docs/book/10-Interfaces.md b/docs/book/10-Interfaces.md
index 65e9e38f..7625e07b 100644
--- a/docs/book/10-Interfaces.md
+++ b/docs/book/10-Interfaces.md
@@ -1112,7 +1112,7 @@ public class Adventure {
         x.swim();
     }
     
-    public staic void v(CanFly x) {
+    public static void v(CanFly x) {
         x.fly();
     }