diff --git a/audio/bangr-lv2/files/patch-src_Airwindows_XRegion.cpp b/audio/bangr-lv2/files/patch-src_Airwindows_XRegion.cpp
new file mode 100644
index 000000000000..b656f8c854f8
--- /dev/null
+++ b/audio/bangr-lv2/files/patch-src_Airwindows_XRegion.cpp
@@ -0,0 +1,12 @@
+-- add missing include for rand() function
+
+--- src/Airwindows/XRegion.cpp.orig	2026-05-21 06:57:07 UTC
++++ src/Airwindows/XRegion.cpp
+@@ -29,6 +29,7 @@
+ 
+ #include "XRegion.hpp"
+ #include <cstring>
++#include <stdlib.h> // for rand()
+ 
+ XRegion::XRegion (const double rate) :
+     rate (rate),