diff --git a/libc-test/Cargo.toml b/libc-test/Cargo.toml
index c6950d6ea34d8..32ab94aa7ebcd 100644
--- a/libc-test/Cargo.toml
+++ b/libc-test/Cargo.toml
@@ -26,3 +26,7 @@ name = "linux-fcntl"
 path = "test/linux_fcntl.rs"
 harness = false
 
+[[test]]
+name = "no-private-align"
+path = "test/no_private_align.rs"
+harness = false
diff --git a/libc-test/test/no_private_align.rs b/libc-test/test/no_private_align.rs
new file mode 100644
index 0000000000000..a10a235f49054
--- /dev/null
+++ b/libc-test/test/no_private_align.rs
@@ -0,0 +1,9 @@
+extern crate libc;
+
+fn main() {
+    #[cfg(feature = "align")]
+    const ADDR: libc::in6_addr = libc::in6_addr {
+        s6_addr: [0; 16],
+    };
+    println!("PASSED all tests");
+}