diff --git a/Userland/Libraries/LibC/errno_numbers.h b/Userland/Libraries/LibC/errno_numbers.h
index 62870e7bed..42d908729b 100644
--- a/Userland/Libraries/LibC/errno_numbers.h
+++ b/Userland/Libraries/LibC/errno_numbers.h
@@ -160,3 +160,4 @@ enum ErrnoCode {
 };
 
 #define EWOULDBLOCK EAGAIN
+#define ELAST EMAXERRNO