diff --git a/src/components/loupe/loupe.jsx b/src/components/loupe/loupe.jsx
index 4c2c1b2d6..b4b97d807 100644
--- a/src/components/loupe/loupe.jsx
+++ b/src/components/loupe/loupe.jsx
@@ -91,7 +91,8 @@ LoupeComponent.propTypes = {
         color: PropTypes.shape({
             r: PropTypes.number,
             g: PropTypes.number,
-            b: PropTypes.number
+            b: PropTypes.number,
+            a: PropTypes.number
         }),
         data: PropTypes.instanceOf(Uint8Array),
         width: PropTypes.number,
diff --git a/src/components/sprite-selector/sprite-list.jsx b/src/components/sprite-selector/sprite-list.jsx
index e89898e47..3d1910293 100644
--- a/src/components/sprite-selector/sprite-list.jsx
+++ b/src/components/sprite-selector/sprite-list.jsx
@@ -110,7 +110,8 @@ SpriteList.propTypes = {
     editingTarget: PropTypes.string,
     hoveredTarget: PropTypes.shape({
         hoveredSprite: PropTypes.string,
-        receivedBlocks: PropTypes.bool
+        receivedBlocks: PropTypes.bool,
+        sprite: PropTypes.string
     }),
     items: PropTypes.arrayOf(PropTypes.shape({
         costume: PropTypes.shape({