diff --git a/rust/src/internal/wayland.rs b/rust/src/internal/wayland.rs
index 75920b6..9816e2d 100644
--- a/rust/src/internal/wayland.rs
+++ b/rust/src/internal/wayland.rs
@@ -39,7 +39,7 @@ pub struct AppState {
 
 impl AppState {
     fn emit(&self) {
-        let mut groups: Vec<_> = self.workspace_groups.values().collect();
+        let mut groups: Vec<&WorkspaceGroup> = self.workspace_groups.values().collect();
 
         groups.sort_by_key(|group| {
             group