diff --git a/wasi-sdk.control b/wasi-sdk.control
index 0586f37..f13d2e1 100644
--- a/wasi-sdk.control
+++ b/wasi-sdk.control
@@ -4,3 +4,4 @@ Architecture: amd64
 Priority: optional
 Description: Clang toolchain with wasm32-wasi default target, and the wasi sysroot
 Maintainer: Pat Hickey <phickey@fastly.com>
+Depends: libxml2