diff --git a/src/ares/ares_platform.c b/src/ares/ares_platform.c
diff --git a/src/ares/config_win32/ares_config.h b/src/ares/config_win32/ares_config.h
@@ -108,6 +108,9 @@
 /* Define if you have the strcasecmp function. */
 /* #define HAVE_STRCASECMP 1 */
 
+/* Define if you have the getenv function. */
+#define HAVE_GETENV 1
+
 /* Define if you have the strdup function. */
 #define HAVE_STRDUP 1
 

diff --git a/uv.gyp b/uv.gyp
@@ -102,6 +102,8 @@
             'src/ares/config_win32/ares_config.h',
             'src/ares/windows_port.c',
             'src/ares/ares_getenv.c',
+            'src/ares/ares_iphlpapi.h',
+            'src/ares/ares_platform.c',
             'src/win/async.c',
             'src/win/cares.c',
             'src/win/core.c',