--- a/build.rs
+++ b/build.rs
@@ -39,7 +39,10 @@ fn build_opus(is_static: bool) {
     );
 
     println!("cargo:info=Building Opus via CMake.");
-    let opus_build_dir = cmake::build(opus_path);
+    let opus_build_dir = cmake::Config::new(opus_path)
+        // link_opus() expects the installed archive under <prefix>/lib.
+        .define("CMAKE_INSTALL_LIBDIR", "lib")
+        .build();
     link_opus(is_static, opus_build_dir.display())
 }