diff --git a/src/Dapper.FluentColumnMapping/ExtensionMethods.cs b/src/Dapper.FluentColumnMapping/ExtensionMethods.cs
index f7fcf3d..efa10b8 100644
--- a/src/Dapper.FluentColumnMapping/ExtensionMethods.cs
+++ b/src/Dapper.FluentColumnMapping/ExtensionMethods.cs
@@ -300,7 +300,7 @@ public static void RegisterWithDapper(this ColumnMappingCollection columnMapping
                         var mappedPropertyName = typeMapping.ColumnHasBeenMapped(columnName)
                                                ? typeMapping[columnName]
                                                : columnName;
-                        return type.GetProperty(mappedPropertyName);
+                        return type.GetProperty(mappedPropertyName, BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance);
                     };
 
                 Type mappedType = typeMapping.MappedType;