diff --git a/showmore_dyn/showmore_dyn.php b/showmore_dyn/showmore_dyn.php
index 7e499beaa..41de11a3f 100644
--- a/showmore_dyn/showmore_dyn.php
+++ b/showmore_dyn/showmore_dyn.php
@@ -48,7 +48,7 @@ function showmore_dyn_settings_post()
 	}
 }
 
-function showmore_dyn_settings(&$a, &$o)
+function showmore_dyn_settings(App &$a, &$o)
 {
 	if(!local_user()) {
 		return;