diff --git a/nac3core/src/toplevel/composer.rs b/nac3core/src/toplevel/composer.rs
index 208e2089..bf36adcd 100644
--- a/nac3core/src/toplevel/composer.rs
+++ b/nac3core/src/toplevel/composer.rs
@@ -806,7 +806,7 @@ impl TopLevelComposer {
                                     .as_ref()
                                     .ok_or_else(|| {
                                         format!(
-                                            "function parameter `{}` at {} need type annotation",
+                                            "function parameter `{}` needs type annotation at {}",
                                             x.node.arg, x.location
                                         )
                                     })?