diff --git a/include/ares_build.h.dist b/include/ares_build.h.dist
index 18a92606..aca66beb 100644
--- a/include/ares_build.h.dist
+++ b/include/ares_build.h.dist
@@ -165,7 +165,6 @@
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
 
 #elif defined(_WIN32)
-#  define WIN32_LEAN_AND_MEAN
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
 #  define CARES_HAVE_WINDOWS_H          1
 #  define CARES_HAVE_SYS_TYPES_H        1