diff --git a/changelog/2692.fixed.md b/changelog/2692.fixed.md
new file mode 100644
index 0000000000..3c44361ccf
--- /dev/null
+++ b/changelog/2692.fixed.md
@@ -0,0 +1 @@
+Define errno EWOULDBLOCK as an alias of EAGAIN to match the AIX libc definition.
diff --git a/src/errno.rs b/src/errno.rs
index 497e33dbbf..e34b111c60 100644
--- a/src/errno.rs
+++ b/src/errno.rs
@@ -3247,6 +3247,10 @@ mod consts {
         EOPNOTSUPP = libc::EOPNOTSUPP,
     }
 
+    impl Errno {
+        pub const EWOULDBLOCK: Errno = Errno::EAGAIN;
+    }
+
     #[deprecated(
         since = "0.28.0",
         note = "please use `Errno::from_raw()` instead"