diff --git a/crypto/src/math/ec/LongArray.cs b/crypto/src/math/ec/LongArray.cs
index c4e3dacbc..84462e0ea 100644
--- a/crypto/src/math/ec/LongArray.cs
+++ b/crypto/src/math/ec/LongArray.cs
@@ -13,7 +13,7 @@ namespace Org.BouncyCastle.Math.EC
* This expands 8 bit indices into 16 bit contents (high bit 14), by inserting 0s between bits.
* In a binary field, this operation is the same as squaring an 8 bit number.
*/
- private static readonly int[] INTERLEAVE2_TABLE = new int[]
+ private static readonly ushort[] INTERLEAVE2_TABLE = new ushort[]
{
0x0000, 0x0001, 0x0004, 0x0005, 0x0010, 0x0011, 0x0014, 0x0015,
0x0040, 0x0041, 0x0044, 0x0045, 0x0050, 0x0051, 0x0054, 0x0055,
|