diff --git a/Source/OpenTK/Math/Half.cs b/Source/OpenTK/Math/Half.cs
index 3e5f4063b1..06ff241c17 100644
--- a/Source/OpenTK/Math/Half.cs
+++ b/Source/OpenTK/Math/Half.cs
@@ -228,7 +228,7 @@ private UInt16 SingleToHalf(Int32 si32)
 
                 mantissa = mantissa + 0x00000fff + ((mantissa >> 13) & 1);
 
-                if ((mantissa & 0x00800000) == 1)
+                if ((mantissa & 0x00800000) != 0)
                 {
                     mantissa = 0;        // overflow in significand,
                     exponent += 1;        // adjust exponent