diff --git a/.gitmodules b/.gitmodules
index c5dc809f..7b2f2bc9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,6 +13,11 @@
     url = https://github.com/upx/upx-vendor-lzma-sdk.git
     branch = upx-vendor
     shallow = true
+[submodule "vendor/rangeless"]
+    path = vendor/rangeless
+    url = https://github.com/upx/upx-vendor-rangeless.git
+    branch = upx-vendor
+    shallow = true
 [submodule "vendor/ucl"]
     path = vendor/ucl
     url = https://github.com/upx/upx-vendor-ucl.git
diff --git a/vendor/rangeless b/vendor/rangeless
new file mode 160000
index 00000000..c283c97b
--- /dev/null
+++ b/vendor/rangeless
@@ -0,0 +1 @@
+Subproject commit c283c97b47252e20ca0307f5a5641c490419e23b