diff --git a/src/Marten/Storage/Metadata/MetadataColumn.cs b/src/Marten/Storage/Metadata/MetadataColumn.cs
index a41352e2fc..2af89e196d 100644
--- a/src/Marten/Storage/Metadata/MetadataColumn.cs
+++ b/src/Marten/Storage/Metadata/MetadataColumn.cs
@@ -122,7 +122,7 @@ public override MemberInfo Member
                 if (value.GetRawMemberType() != typeof(T))
                 {
                     throw new ArgumentOutOfRangeException(nameof(value),
-                        $"The {_memberName} member has to be of type {typeof(T).NameInCode()}");
+                        $"The {_memberName} member of {_member.DeclaringType?.NameInCode() ?? "null"} has to be of type {typeof(T).NameInCode()}");
                 }
 
                 _member = value;