diff --git a/include/gui/GuiTrigger.h b/include/gui/GuiTrigger.h
index 8bab033..2ee9097 100644
--- a/include/gui/GuiTrigger.h
+++ b/include/gui/GuiTrigger.h
@@ -18,6 +18,9 @@
 #define GUI_TRIGGER_H_
 
 #include <stdint.h>
+
+class GuiController;
+
 //!Menu input trigger management. Determine if action is neccessary based on input data by comparing controller input data to a specific trigger element.
 class GuiTrigger {
 public: