diff --git a/doc/examples/incorrect/use-case-14.b b/doc/examples/incorrect/use-case-14.b
index 719932c..cfc451b 100644
--- a/doc/examples/incorrect/use-case-14.b
+++ b/doc/examples/incorrect/use-case-14.b
@@ -1,2 +1,2 @@
 fun f = 1/x;
-derivative f in (3) err -2;
\ No newline at end of file
+integrate f between (2 ~ 7) err -2;
\ No newline at end of file