1 files changed, 2 insertions, 1 deletions
diff --git a/csharp/src/Google.Protobuf/Reflection/ReflectionUtil.cs b/csharp/src/Google.Protobuf/Reflection/ReflectionUtil.cs
index d0dc3e8b..5b3cbb36 100644
--- a/csharp/src/Google.Protobuf/Reflection/ReflectionUtil.cs
+++ b/csharp/src/Google.Protobuf/Reflection/ReflectionUtil.cs
@@ -31,6 +31,7 @@
 #endregion
 
 using System;
+using System.Collections.Generic;
 using System.Linq.Expressions;
 using System.Reflection;
 
@@ -101,6 +102,6 @@ namespace Google.Protobuf.Reflection
             Expression castTarget = Expression.Convert(targetParameter, method.DeclaringType);
             Expression call = Expression.Call(castTarget, method);
             return Expression.Lambda<Action<object>>(call, targetParameter).Compile();
-        }
+        }        
     }
 }
 \ No newline at end of file