diff --git a/src/Orleans.Core.Abstractions/IDs/IdSpan.cs b/src/Orleans.Core.Abstractions/IDs/IdSpan.cs
index b1297231c02..b919f75f8cb 100644
--- a/src/Orleans.Core.Abstractions/IDs/IdSpan.cs
+++ b/src/Orleans.Core.Abstractions/IDs/IdSpan.cs
@@ -86,7 +86,7 @@ private IdSpan(SerializationInfo info, StreamingContext context)
         /// Returns a span representation of this instance.
         /// </summary>
         /// <returns>
-        /// A span representation fo this instance.
+        /// A span representation of this instance.
         /// </returns>
         public ReadOnlySpan<byte> AsSpan() => _value;