1 files changed, 1 insertions, 1 deletions

diff --git a/disto~.c b/disto~.c
index 66865db..ab0d921 100644
--- a/disto~.c
+++ b/disto~.c
@@ -39,7 +39,7 @@
 #include <stdlib.h>
 #include <math.h>
 
-#ifdef NT
+#ifdef _MSC_VER
 #define M_PI 3.14159265358979323846
 #endif