diff --git a/dpdk-sys/build.rs b/dpdk-sys/build.rs
index cfb1b08..559a1d6 100644
--- a/dpdk-sys/build.rs
+++ b/dpdk-sys/build.rs
@@ -328,6 +328,7 @@ impl State {
                     continue 'outer;
                 }
             }
+            println!("cargo:warning=header-name: {}", file_name);
             new_vec.push(file.clone());
         }
         new_vec.sort_by(|left, right| {