diff --git a/posix/fd.hpp b/posix/fd.hpp
index 0ece99f9..30642049 100644
--- a/posix/fd.hpp
+++ b/posix/fd.hpp
@@ -63,8 +63,8 @@ namespace util::posix {
         int release (void);
 
         //---------------------------------------------------------------------
-        [[gnu::warn_unused_result]] ssize_t read (void *buf, size_t count);
-        [[gnu::warn_unused_result]] ssize_t write (const void *buf, size_t count);
+        [[nodiscard]] ssize_t read (void *buf, size_t count);
+        [[nodiscard]] ssize_t write (const void *buf, size_t count);
 
 
         //---------------------------------------------------------------------
diff --git a/signal.hpp b/signal.hpp
index 88d1dd5d..d176c28b 100644
--- a/signal.hpp
+++ b/signal.hpp
@@ -81,8 +81,8 @@ namespace util {
             ~signal ();
 
             /// Add a callback to list.
-            cookie connect [[gnu::warn_unused_result]] (callback&&);
-            cookie connect [[gnu::warn_unused_result]] (const callback&);
+            cookie connect [[nodiscard]] (callback&&);
+            cookie connect [[nodiscard]] (const callback&);
 
             void disconnect (cookie&);
 
diff --git a/view.hpp b/view.hpp
index 7939076c..6f780c6a 100644
--- a/view.hpp
+++ b/view.hpp
@@ -288,7 +288,7 @@ namespace util {
         }
 
         //---------------------------------------------------------------------
-        [[gnu::warn_unused_result]] constexpr auto
+        [[nodiscard]] constexpr auto
         redim (size_type count) const
         {
             assert (count > 0);