diff --git a/linuxdoom-1.10/tables.h b/linuxdoom-1.10/tables.h
index 060fe5b35..a6b11fc25 100644
--- a/linuxdoom-1.10/tables.h
+++ b/linuxdoom-1.10/tables.h
@@ -41,7 +41,7 @@
 #ifdef LINUX
 #include <math.h>
 #else
-#define PI				3.141592657
+#define PI				3.141592653
 #endif