diff --git a/src/components/media-gallery.tsx b/src/components/media-gallery.tsx
index 9b59bab2d..dfa824542 100644
--- a/src/components/media-gallery.tsx
+++ b/src/components/media-gallery.tsx
@@ -44,7 +44,7 @@ const withinLimits = (aspectRatio: number) => {
 };
 
 const shouldLetterbox = (attachment: Attachment): boolean => {
-  const aspectRatio = 'meta' in attachment && 'original' in attachment.meta && (attachment)?.meta?.original?.aspect;
+  const aspectRatio = 'meta' in attachment && 'original' in attachment.meta && (attachment).meta.original?.aspect;
 
   if (!aspectRatio) return true;
 
@@ -158,7 +158,7 @@ const Item: React.FC<IItem> = ({
     const attachmentIcon = (
       <SvgIcon
         className={clsx('size-16 text-gray-800 dark:text-gray-200', { 'size-8': compact })}
-        src={MIMETYPE_ICONS[attachment?.pleroma?.mime_type as string] || paperclipIcon}
+        src={MIMETYPE_ICONS[attachment?.pleroma?.mime_type!] || paperclipIcon}
       />
     );
 
@@ -322,7 +322,7 @@ const MediaGallery: React.FC<IMediaGallery> = (props) => {
 
   const getSizeDataSingle = (): SizeData => {
     const w = width || defaultWidth;
-    const aspectRatio = 'meta' in media[0] && 'original' in media[0].meta && (media[0])?.meta?.original?.aspect;
+    const aspectRatio = 'meta' in media[0] && 'original' in media[0].meta && (media[0])?.meta.original?.aspect;
 
     const getHeight = () => {
       if (!aspectRatio) return w * 9 / 16;
@@ -348,7 +348,7 @@ const MediaGallery: React.FC<IMediaGallery> = (props) => {
     let itemsDimensions: Dimensions[] = [];
 
     const ratios = Array(size).fill(null).map((_, i) =>
-      'meta' in media[i] && 'original' in media[i].meta && typeof media[i].meta?.original?.aspect === 'number'
+      'meta' in media[i] && 'original' in media[i].meta && typeof media[i].meta.original?.aspect === 'number'
         ? media[i].meta.original.aspect
         : undefined as unknown as number, // NOTE: the old logic returned undefined anyways, and the implementation of the functions below call 'isNaN', such as the 'isPortrait' function
     );