diff --git a/inc/math.h b/inc/math.h
index 290d971..3102f4d 100644
--- a/inc/math.h
+++ b/inc/math.h
@@ -34,7 +34,7 @@
 
 
 #define INFINITY	(__builtin_inff())
-#define NAN			nan("")
+#define NAN			nan("0")