diff --git a/src/http/schemas/transformations.ts b/src/http/schemas/transformations.ts
index 51dabd32e..907dd154a 100644
--- a/src/http/schemas/transformations.ts
+++ b/src/http/schemas/transformations.ts
@@ -2,6 +2,6 @@ export const transformationOptionsSchema = {
   height: { type: 'integer', examples: [100], minimum: 0 },
   width: { type: 'integer', examples: [100], minimum: 0 },
   resize: { type: 'string', enum: ['cover', 'contain', 'fill'] },
-  format: { type: 'string', enum: ['origin'] },
+  format: { type: 'string', enum: ['origin', 'avif'] },
   quality: { type: 'integer', minimum: 20, maximum: 100 },
 } as const
diff --git a/src/storage/renderer/image.ts b/src/storage/renderer/image.ts
index 540a3dfa6..e9df5ccbd 100644
--- a/src/storage/renderer/image.ts
+++ b/src/storage/renderer/image.ts
@@ -14,7 +14,7 @@ export interface TransformOptions {
   width?: number
   height?: number
   resize?: 'cover' | 'contain' | 'fill'
-  format?: 'origin'
+  format?: 'origin' | 'avif'
   quality?: number
 }
 
@@ -194,6 +194,10 @@ export class ImageRenderer extends Renderer {
       segments.push(`quality:${options.quality}`)
     }
 
+    if (options.format && options.format !== 'origin') {
+      segments.push(`format:${options.format}`)
+    }
+
     return segments
   }