diff --git a/src/ExpressionToString/ExpressionStringBuilder.cs b/src/ExpressionToString/ExpressionStringBuilder.cs
index 9ef5f2a..cad72b0 100644
--- a/src/ExpressionToString/ExpressionStringBuilder.cs
+++ b/src/ExpressionToString/ExpressionStringBuilder.cs
@@ -7,7 +7,7 @@
 // ReSharper disable CheckNamespace
 namespace ExpressionToString
 {
-    class ExpressionStringBuilder : ExpressionVisitor
+    public class ExpressionStringBuilder : ExpressionVisitor
     {
         // ReSharper disable InconsistentNaming
         private readonly StringBuilder builder = new StringBuilder();