diff --git a/invoker.go b/invoker.go
index c7f60ec..7384beb 100644
--- a/invoker.go
+++ b/invoker.go
@@ -45,7 +45,8 @@ func (i *invoker) Invoke(fn any) (InvokeResult, error) {
 		if index == len(fnOutArgs)-1 {
 			// And type of the value is the error.
 			if fnOut.Type().Implements(errorType) {
-				// Use the value as an error. Perform safe type conversion to avoid panics.
+				// Use the value as an error.
+				// Ignore failed cast of nil error.
 				result.err, _ = fnOut.Interface().(error)
 			}
 		}