diff --git a/modules/io/pymod/export_mmcif_io.cc b/modules/io/pymod/export_mmcif_io.cc
index fb1fbe01cfdfcaf7e5eeda72b9baaba2dfe45207..c192630ad95cb9a1e1d40699fa3278d36350d01d 100644
--- a/modules/io/pymod/export_mmcif_io.cc
+++ b/modules/io/pymod/export_mmcif_io.cc
@@ -118,7 +118,7 @@ void export_mmcif_io()
     .def("Write", &StarWriter::Write, arg("data_name"))
   ;
 
-  class_<MMCifWriter, boost::noncopyable, bases<StarWriter> >("MMCifWriter", init<const String&, const IOProfile&>())
+  class_<MMCifWriter, boost::noncopyable, bases<StarWriter> >("MMCifWriter", init<const String&>())
     .def("SetStructure", &MMCifWriter::SetStructure, (arg("ent"), arg("mmcif_conform")=true))
   ;
 
diff --git a/modules/io/src/mol/mmcif_writer.cc b/modules/io/src/mol/mmcif_writer.cc
index 728c45c34d60f511a8962c6d88300f3b652b383e..79ff70034b3f9cee9f944f2cbc1cefb9d12a2f0d 100644
--- a/modules/io/src/mol/mmcif_writer.cc
+++ b/modules/io/src/mol/mmcif_writer.cc
@@ -1400,9 +1400,8 @@ int MMCifWriterEntity::GetAsymIdx(const String& asym_id) const {
   throw ost::io::IOException(err);  
 }
 
-MMCifWriter::MMCifWriter(const String& filename, const IOProfile& profile):
+MMCifWriter::MMCifWriter(const String& filename):
   StarWriter(filename),
-  profile_(profile),
   structure_set_(false) { }
 
 void MMCifWriter::SetStructure(const ost::mol::EntityHandle& ent,
diff --git a/modules/io/src/mol/mmcif_writer.hh b/modules/io/src/mol/mmcif_writer.hh
index 3285306bd37d6249d458cdbbfcef35d75f727c43..3ff8cbffdebeeed159a7c9843dac1a9d8ef96435 100644
--- a/modules/io/src/mol/mmcif_writer.hh
+++ b/modules/io/src/mol/mmcif_writer.hh
@@ -69,14 +69,13 @@ struct MMCifWriterEntity {
 class DLLEXPORT_OST_IO MMCifWriter : public StarWriter {
 public:
 
-  MMCifWriter(const String& filename, const IOProfile& profile);
+  MMCifWriter(const String& filename);
 
   virtual ~MMCifWriter() { }
 
   void SetStructure(const ost::mol::EntityHandle& ent, bool mmcif_conform=true);
 
 private:
-  IOProfile profile_;
   std::vector<MMCifWriterEntity> entity_info_;
   StarWriterLoopPtr atom_type_;
   StarWriterLoopPtr atom_site_;