diff --git a/Userland/Libraries/LibGfx/CMYKBitmap.h b/Userland/Libraries/LibGfx/CMYKBitmap.h
index 811a01edac..b92f591b1a 100644
--- a/Userland/Libraries/LibGfx/CMYKBitmap.h
+++ b/Userland/Libraries/LibGfx/CMYKBitmap.h
@@ -19,6 +19,8 @@ struct CMYK {
     u8 m;
     u8 y;
     u8 k;
+
+    int operator<=>(CMYK const&) const = default;
 };
 
 class CMYKBitmap : public RefCounted<CMYKBitmap> {