diff --git a/OpenRA.FileFormats/FileFormats/CRC32.cs b/OpenRA.FileFormats/FileFormats/CRC32.cs
index 1bdbe833e9..61de944e55 100644
--- a/OpenRA.FileFormats/FileFormats/CRC32.cs
+++ b/OpenRA.FileFormats/FileFormats/CRC32.cs
@@ -96,12 +96,12 @@ namespace OpenRA.FileFormats
 		/// <returns>
 		/// The calculated checksum.
 		/// </returns>
-		public static uint Calculate(byte[] data, uint polynomal)
+		public static uint Calculate(byte[] data, uint polynomial)
 		{
-			uint crc = polynomal;
+			uint crc = polynomial;
 			for (int i = 0; i < data.Length; i++)
 				crc = (crc >> 8) ^ lookUp[(crc & 0xFF) ^ data[i]];
-			crc ^= polynomal;
+			crc ^= polynomial;
 			return crc;
 		}
 		public static uint Calculate(byte[] data)
@@ -117,12 +117,12 @@ namespace OpenRA.FileFormats
 		/// <param name="len">		The length of the data data.</param>
 		/// <param name="polynomal">The polynomal to xor with.</param>
 		/// <returns>The calculated checksum.</returns>
-		public static unsafe uint Calculate(byte* data, uint len, uint polynomal)
+		public static unsafe uint Calculate(byte* data, uint len, uint polynomial)
 		{
-			uint crc = polynomal;
+			uint crc = polynomial;
 			for (int i = 0; i < len; i++)
 				crc = (crc >> 8) ^ lookUp[(crc & 0xFF) ^ *data++];
-			crc ^= polynomal;
+			crc ^= polynomial;
 			return crc;
 		}
 		public static unsafe uint Calculate(byte* data, uint len)