diff --git a/include/zeus/Math.hpp b/include/zeus/Math.hpp
index 5734995..e5b2ba2 100644
--- a/include/zeus/Math.hpp
+++ b/include/zeus/Math.hpp
@@ -21,6 +21,7 @@
 #define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
 #undef M_SQRT1_2
 #define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
+#define M_SQRT1_2F 0.70710678118654752440f /* 1/sqrt(2) */
 
 #include <cmath>
 #include <algorithm>