diff --git a/src/port/win32env.c b/src/port/win32env.c
index 536f646..7e4ff62 100644
--- a/src/port/win32env.c
+++ b/src/port/win32env.c
@@ -67,6 +67,9 @@ pgwin32_putenv(const char *envval)
 			"msvcr110", 0, NULL
 		},						/* Visual Studio 2012 */
 		{
+			"msvcr120", 0, NULL
+		},						/* Visual Studio 2013 */
+		{
 			NULL, 0, NULL
 		}
 	};