diff --git a/Cargo.lock b/Cargo.lock
index 830ca58..3c2e157 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -717,6 +717,7 @@ dependencies = [
 name = "xash3d-protocol"
 version = "0.2.0"
 dependencies = [
+ "autocfg",
  "bitflags 2.5.0",
  "log",
 ]
diff --git a/protocol/Cargo.toml b/protocol/Cargo.toml
index 090e8b0..a593034 100644
--- a/protocol/Cargo.toml
+++ b/protocol/Cargo.toml
@@ -20,3 +20,6 @@ net = []
 [dependencies]
 log = "0.4.18"
 bitflags = "2.4"
+
+[build-dependencies]
+autocfg = "1"
diff --git a/protocol/build.rs b/protocol/build.rs
new file mode 100644
index 0000000..b52d41d
--- /dev/null
+++ b/protocol/build.rs
@@ -0,0 +1,7 @@
+fn main() {
+    let ac = autocfg::new();
+    println!("cargo:rustc-check-cfg=cfg(has_doc_auto_cfg)");
+    if ac.probe_raw("#![feature(doc_auto_cfg)]").is_ok() {
+        println!("cargo:rustc-cfg=has_doc_auto_cfg");
+    }
+}
diff --git a/protocol/src/lib.rs b/protocol/src/lib.rs
index 735e6d8..97395a2 100644
--- a/protocol/src/lib.rs
+++ b/protocol/src/lib.rs
@@ -7,6 +7,7 @@
 //! Xash3D protocol between clients, servers and masters.
 
 #![cfg_attr(all(not(feature = "std"), not(test)), no_std)]
+#![cfg_attr(all(doc, has_doc_auto_cfg), feature(doc_auto_cfg))]
 
 #[cfg(feature = "alloc")]
 extern crate alloc;