diff --git a/minihttp.cpp b/minihttp.cpp
index 2f47238..a5dbe7c 100644
--- a/minihttp.cpp
+++ b/minihttp.cpp
@@ -11,7 +11,6 @@
 #endif
 
 #ifdef _WIN32
-#  undef UNICODE
 #  ifndef _WIN32_WINNT
 #    define _WIN32_WINNT 0x0501
 #  endif