diff --git a/src/client/lazy-app/util/index.ts b/src/client/lazy-app/util/index.ts
index a7ae1fedd..1ad9f6e46 100644
--- a/src/client/lazy-app/util/index.ts
+++ b/src/client/lazy-app/util/index.ts
@@ -103,7 +103,7 @@ const magicNumberMapInput = [
   [/^\x00\x00\x00 ftypavif\x00\x00\x00\x00/, 'image/avif'],
   [/^\xff\x0a/, 'image/jxl'],
   [/^\x00\x00\x00\x0cJXL \x0d\x0a\x87\x0a/, 'image/jxl'],
-  [/^QOI/, 'image/qoi'],
+  [/^qoif/, 'image/qoi'],
 ] as const;
 
 export type ImageMimeTypes = typeof magicNumberMapInput[number][1];