diff --git a/src/Utf8StringInterpolation/Utf8StringWriter.cs b/src/Utf8StringInterpolation/Utf8StringWriter.cs
index 95c4921..aa27ece 100644
--- a/src/Utf8StringInterpolation/Utf8StringWriter.cs
+++ b/src/Utf8StringInterpolation/Utf8StringWriter.cs
@@ -417,7 +417,7 @@ void GrowCore(int len)
         allocatedDestinationSize = destination.Length;
     }
 
-    void ClearState()
+    public void ClearState()
     {
         Flush();
         destination = default;