diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b55e57bc..abd1d444 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,7 +37,7 @@ jobs:
         run: git ls-files -- '*.c' '*.h' | xargs clang-format --dry-run --Werror
       
       - name: Check Markdown
-        uses: DavidAnson/markdownlint-cli2-action@v9
+        uses: DavidAnson/markdownlint-cli2-action@v13
 
       - name: Check TOML formatting
         run: taplo fmt --check
diff --git a/test/README.md b/test/README.md
index 5a0db31b..fa3eebca 100644
--- a/test/README.md
+++ b/test/README.md
@@ -10,6 +10,8 @@ You'll need:
 1. `rustup toolchain install nightly`
 1. `rustup target add {aarch64,x86_64}-unknown-linux-musl`
 1. `cargo install bpf-linker`
+1. `libelf-dev` (`libelf-devel` on rpm-based distros)
+1. `llvm` (for `llvm-objcopy`)
 1. (virtualized only) `qemu`
 
 ## Usage
@@ -25,7 +27,7 @@ cargo xtask integration-test local
 ### Virtualized
 
 ```bash
-cargo xtask integration-test vm
+cargo xtask integration-test vm <KERNEL IMAGE>
 ```
 
 ### Writing an integration test
diff --git a/test/integration-test/src/tests/xdp.rs b/test/integration-test/src/tests/xdp.rs
index 784ffe75..bd694287 100644
--- a/test/integration-test/src/tests/xdp.rs
+++ b/test/integration-test/src/tests/xdp.rs
@@ -28,7 +28,7 @@ fn af_xdp() {
 
     // So this needs to be page aligned. Pages are 4k on all mainstream architectures except for
     // Apple Silicon which uses 16k pages. So let's align on that for tests to run natively there.
-    #[repr(align(16384))]
+    #[repr(C, align(16384))]
     struct PacketMap(MaybeUninit<[u8; 4096]>);
 
     // Safety: don't access alloc down the line.