diff --git a/src/Magnum/Magnum.h b/src/Magnum/Magnum.h
index 02356c487..b8922b638 100644
--- a/src/Magnum/Magnum.h
+++ b/src/Magnum/Magnum.h
@@ -435,7 +435,7 @@ using Math::operator "" _radf;
    FramebufferTarget enums used only directly with framebuffer instance */
 class AbstractFramebuffer;
 
-/* AbstractQuery is not used directly */
+class AbstractQuery;
 class AbstractShaderProgram;
 class AbstractTexture;