diff --git a/docs/Microsoft.IO/RecyclableMemoryStreamManager.Events/MemoryStreamDisposed.md b/docs/Microsoft.IO/RecyclableMemoryStreamManager.Events/MemoryStreamDisposed.md
index b0a39850..8f1c9e07 100644
--- a/docs/Microsoft.IO/RecyclableMemoryStreamManager.Events/MemoryStreamDisposed.md
+++ b/docs/Microsoft.IO/RecyclableMemoryStreamManager.Events/MemoryStreamDisposed.md
@@ -3,7 +3,7 @@
Logged when the stream is disposed.
```csharp
-public void MemoryStreamDisposed(Guid guid, string tag, TimeSpan lifetime, string allocationStack,
+public void MemoryStreamDisposed(Guid guid, string tag, long lifetimeMs, string allocationStack,
string disposeStack)
```
@@ -11,7 +11,7 @@ public void MemoryStreamDisposed(Guid guid, string tag, TimeSpan lifetime, strin
| --- | --- |
| guid | A unique ID for this stream. |
| tag | A temporary ID for this stream, usually indicates current usage. |
-| lifetime | Lifetime of the stream |
+| lifetimeMs | Lifetime in milliseconds of the stream |
| allocationStack | Call stack of initial allocation. |
| disposeStack | Call stack of the dispose. |
diff --git a/src/Microsoft.IO.RecyclableMemoryStream.csproj b/src/Microsoft.IO.RecyclableMemoryStream.csproj
index af88f2eb..cb3ff317 100644
--- a/src/Microsoft.IO.RecyclableMemoryStream.csproj
+++ b/src/Microsoft.IO.RecyclableMemoryStream.csproj
@@ -7,7 +7,7 @@