diff --git a/libc/decl/errno_values.h b/libc/decl/errno_values.h
index 3735cab9..8a82bcaa 100644
--- a/libc/decl/errno_values.h
+++ b/libc/decl/errno_values.h
@@ -49,6 +49,7 @@
 #define EAFNOSUPPORT 57
 #define ENOTSOCK 58
 #define EADDRINUSE 59
+#define ETIMEDOUT 60
 
 #define EOPNOTSUPP ENOTSUP
 
diff --git a/libc/strerror.cpp b/libc/strerror.cpp
index bcd4d331..e4a5f469 100644
--- a/libc/strerror.cpp
+++ b/libc/strerror.cpp
@@ -78,6 +78,7 @@ extern "C" const char* sortix_strerror(int errnum)
 	case EAFNOSUPPORT: return "Address family not supported";
 	case ENOTSOCK: return "Not a socket";
 	case EADDRINUSE: return "Address already in use";
+	case ETIMEDOUT: return "Connection timed out";
 	default: return "Unknown error condition";
 	}
 }