diff --git a/external/parallel-rdp/CMakeLists.txt b/external/parallel-rdp/CMakeLists.txt
index 83d10880..c482bc76 100644
--- a/external/parallel-rdp/CMakeLists.txt
+++ b/external/parallel-rdp/CMakeLists.txt
@@ -41,6 +41,8 @@ add_library(parallel-rdp
   parallel-rdp-standalone/util/logging.hpp
   parallel-rdp-standalone/util/thread_id.cpp
   parallel-rdp-standalone/util/thread_id.hpp
+  parallel-rdp-standalone/util/environment.cpp
+  parallel-rdp-standalone/util/environment.hpp
   # C
   parallel-rdp-standalone/volk/volk.c
 )
diff --git a/src/frontend/RenderWidget.hpp b/src/frontend/RenderWidget.hpp
index 2b1b3806..543a5ab9 100644
--- a/src/frontend/RenderWidget.hpp
+++ b/src/frontend/RenderWidget.hpp
@@ -72,6 +72,7 @@ public:
   }
 
   void poll_input() override {}
+  void poll_input_async(Granite::InputTrackerHandler* handler) override {}
 
   void event_frame_tick(double frame, double elapsed) override { }