diff --git a/ash/src/extensions/ext/mod.rs b/ash/src/extensions/ext/mod.rs
index 56d6e18..894f2aa 100644
--- a/ash/src/extensions/ext/mod.rs
+++ b/ash/src/extensions/ext/mod.rs
@@ -1,10 +1,14 @@
+#[allow(deprecated)]
 pub use self::debug_marker::DebugMarker;
+#[allow(deprecated)]
 pub use self::debug_report::DebugReport;
 pub use self::debug_utils::DebugUtils;
 pub use self::metal_surface::MetalSurface;
 pub use self::tooling_info::ToolingInfo;
 
+#[deprecated(note = "Please use the [DebugUtils](struct.DebugUtils.html) extension instead.")]
 mod debug_marker;
+#[deprecated(note = "Please use the [DebugUtils](struct.DebugUtils.html) extension instead.")]
 mod debug_report;
 mod debug_utils;
 mod metal_surface;