diff --git a/src/build.rs b/src/build.rs
index 534a9a7d..c9feaa0a 100644
--- a/src/build.rs
+++ b/src/build.rs
@@ -2,6 +2,6 @@ use std::env::var;
 
 fn main() {
     if var("CARGO_FEATURE_DEFLATE_MINIZ").is_ok() {
-        println!("cargo::warning=Feature `deflate-miniz` is deprecated; replace it with `deflate`");
+        println!("cargo:warning=Feature `deflate-miniz` is deprecated; replace it with `deflate`");
     }
 }
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