diff --git a/misc/build.func b/misc/build.func
index 6649b7e3d..4efabe06e 100644
--- a/misc/build.func
+++ b/misc/build.func
@@ -3516,6 +3516,7 @@ build_container() {
   export PCT_DISK_SIZE="$DISK_SIZE"
   export IPV6_METHOD="$IPV6_METHOD"
   export ENABLE_GPU="$ENABLE_GPU"
+  export APPLICATION_VERSION="${var_appversion:-}"
 
   # DEV_MODE exports (optional, for debugging)
   export BUILD_LOG="$BUILD_LOG"