diff --git a/src/pc/controller/controller_system.h b/src/pc/controller/controller_system.h
index fedc8882e..fb4068288 100644
--- a/src/pc/controller/controller_system.h
+++ b/src/pc/controller/controller_system.h
@@ -1,3 +1,5 @@
+#include <stdbool.h>
+
 struct ControllerInfo {
     u8 index;
     u32 type;