diff --git a/src/gmt_notposix.h b/src/gmt_notposix.h
index 570bdb9f612..8e170df709d 100644
--- a/src/gmt_notposix.h
+++ b/src/gmt_notposix.h
@@ -331,8 +331,13 @@
 
 #ifndef NAN
 #	ifdef _MSC_VER
-		static const double _NAN = (-(float)(((float)(1e+300 * 1e+300)) * 0.0F));
-#		define NAN _NAN
+# 		ifndef INFINITY
+#			ifndef _HUGE_ENUF
+#				define _HUGE_ENUF 1e+300 // _HUGE_ENUF*_HUGE_ENUF must overflow
+# 			endif
+#			define INFINITY ((float)(_HUGE_ENUF * _HUGE_ENUF))
+# 		endif
+# 		define NAN (-(float)(INFINITY * 0.0F))
 #	else /* _MSC_VER */
 		static const double _NAN = (HUGE_VAL-HUGE_VAL);
 #		define NAN _NAN