diff --git a/kx-control-input-port-change-request.lv2/control-input-port-change-request.h b/kx-control-input-port-change-request.lv2/control-input-port-change-request.h
index 3757bba..36356a6 100644
--- a/kx-control-input-port-change-request.lv2/control-input-port-change-request.h
+++ b/kx-control-input-port-change-request.lv2/control-input-port-change-request.h
@@ -28,6 +28,8 @@
 #define LV2_CONTROL_INPUT_PORT_CHANGE_REQUEST_URI    "http://kx.studio/ns/lv2ext/control-input-port-change-request"
 #define LV2_CONTROL_INPUT_PORT_CHANGE_REQUEST_PREFIX LV2_CONTROL_INPUT_PORT_CHANGE_REQUEST_URI "#"
 
+#include <stdint.h>
+
 #ifdef __cplusplus
 extern "C" {
 #else