diff --git a/src/Tgstation.Server.Host/IO/ISynchronousIOManager.cs b/src/Tgstation.Server.Host/IO/ISynchronousIOManager.cs
index ae95ce9341..72b241645e 100644
--- a/src/Tgstation.Server.Host/IO/ISynchronousIOManager.cs
+++ b/src/Tgstation.Server.Host/IO/ISynchronousIOManager.cs
@@ -38,7 +38,7 @@ namespace Tgstation.Server.Host.IO
 		/// <param name="data">The new contents of the file</param>
 		/// <param name="sha1InOut">The function only succeeds if this parameter matches the SHA-1 hash of the contents of the current file. Contains the SHA1 of the file on disk once the function returns</param>
 		/// <param name="cancellationToken">The <see cref="CancellationToken"/> for the operation</param>
-		/// <returns><see langword="true"/> on success, <see langword="false"/> if the operation failed due to <paramref name="previousSha1"/> not matching the file's contents</returns>
+		/// <returns><see langword="true"/> on success, <see langword="false"/> if the operation failed due to <paramref name="sha1InOut"/> not matching the file's contents</returns>
 		bool WriteFileChecked(string path, byte[] data, ref string sha1InOut, CancellationToken cancellationToken);
 
 		/// <summary>