diff --git a/lib/curl_setup.h b/lib/curl_setup.h
index 04078b7cba..f9c062b060 100644
--- a/lib/curl_setup.h
+++ b/lib/curl_setup.h
@@ -859,7 +859,6 @@
 #define EEXIST 17
 #define EISDIR 21
 #define ENOSPC 28
-#define ERANGE 34
 #define strerror(x) "?"
 #else
 #define CURL_SETERRNO(x) (errno = (x))