diff --git a/desktop/src-common/advent/screens/inventory.clj b/desktop/src-common/advent/screens/inventory.clj
index 54c10a33..ee53523d 100644
--- a/desktop/src-common/advent/screens/inventory.clj
+++ b/desktop/src-common/advent/screens/inventory.clj
@@ -31,10 +31,11 @@
                                                  :finish #(assoc % :shown? false)))))
 
 (defn mouse-down [screen entities options]
-  (let [[x y] (utils/unproject screen options)
-        selected-entity (first (filter #((:box %) x y) (vals (:items entities))))]
-    (assoc entities :selected-item (:item selected-entity)
-           :down-time (:total-time screen))))
+  (when (interactable? entities)
+    (let [[x y] (utils/unproject screen options)
+          selected-entity (first (filter #((:box %) x y) (vals (:items entities))))]
+      (assoc entities :selected-item (:item selected-entity)
+             :down-time (:total-time screen)))))
 
 (defn mouse-outside-inventory? [[x y]]
   (or (< x 140)