diff --git a/app/assets/javascripts/discourse/app/controllers/composer.js b/app/assets/javascripts/discourse/app/controllers/composer.js
index e0c09b70b51..0c4be8430c4 100644
--- a/app/assets/javascripts/discourse/app/controllers/composer.js
+++ b/app/assets/javascripts/discourse/app/controllers/composer.js
@@ -770,14 +770,15 @@ export default Controller.extend({
 
     // TODO: This should not happen in model
     const imageSizes = {};
-    $("#reply-control .d-editor-preview img").each((i, e) => {
-      const $img = $(e);
-      const src = $img.prop("src");
+    document
+      .querySelectorAll("#reply-control .d-editor-preview img")
+      .forEach((e) => {
+        const src = e.src;
 
-      if (src && src.length) {
-        imageSizes[src] = { width: $img.width(), height: $img.height() };
-      }
-    });
+        if (src && src.length) {
+          imageSizes[src] = { width: e.naturalWidth, height: e.naturalHeight };
+        }
+      });
 
     const promise = composer
       .save({ imageSizes, editReason: this.editReason })