1 files changed, 3 insertions, 0 deletions
diff --git a/src/wm_layer.hpp b/src/wm_layer.hpp
index ac74530..6cfd9c2 100644
--- a/src/wm_layer.hpp
+++ b/src/wm_layer.hpp
@@ -23,6 +23,8 @@
 #include <memory>
 #include "wm_error.hpp"
 
+struct json_object;
+
 namespace wm
 {
 
@@ -79,6 +81,7 @@ class WMLayer
 {
   public:
     WMLayer();
+    WMLayer(json_object* j);
     ~WMLayer() = default;
     unsigned getNewLayerID(const std::string& role);
     LayerState getLayerState() const { return before_state; }