diff --git a/components/net/image_cache.rs b/components/net/image_cache.rs
index 8df2b277afc..003854467c9 100644
--- a/components/net/image_cache.rs
+++ b/components/net/image_cache.rs
@@ -267,13 +267,19 @@ impl CompletedLoad {
     }
 }
 
-#[derive(Clone, Debug, MallocSizeOf)]
+#[derive(Clone, MallocSizeOf)]
 struct VectorImageData {
     #[conditional_malloc_size_of]
     svg_tree: Arc<usvg::Tree>,
     cors_status: CorsStatus,
 }
 
+impl std::fmt::Debug for VectorImageData {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("VectorImageData").finish()
+    }
+}
+
 enum DecodedImage {
     Raster(RasterImage),
     Vector(VectorImageData),