diff --git a/src/plugins/support/CellMLSupport/src/cellmlfilerdftriple.cpp b/src/plugins/support/CellMLSupport/src/cellmlfilerdftriple.cpp
index f1b86f83a8..5b62e6ca75 100644
--- a/src/plugins/support/CellMLSupport/src/cellmlfilerdftriple.cpp
+++ b/src/plugins/support/CellMLSupport/src/cellmlfilerdftriple.cpp
@@ -68,13 +68,9 @@ CellmlFileRdfTriple::CellmlFileRdfTriple(CellmlFile *pCellmlFile,
 {
     // Retrieve the RDF triple's subject, predicate and object information
 
-    ObjRef<iface::rdf_api::Resource> subject = pRdfTriple->subject();
-    ObjRef<iface::rdf_api::Resource> predicate = pRdfTriple->predicate();
-    ObjRef<iface::rdf_api::Node> object = pRdfTriple->object();
-
-    mSubject = new CellmlFileRdfTripleElement(subject);
-    mPredicate = new CellmlFileRdfTripleElement(predicate);
-    mObject = new CellmlFileRdfTripleElement(object);
+    mSubject = new CellmlFileRdfTripleElement(pRdfTriple->subject());
+    mPredicate = new CellmlFileRdfTripleElement(pRdfTriple->predicate());
+    mObject = new CellmlFileRdfTripleElement(pRdfTriple->object());
 
     // Determine the type of the RDF triple
 
@@ -593,7 +589,6 @@ CellmlFileRdfTriple * CellmlFileRdfTriples::add(CellmlFileRdfTriple *pRdfTriple)
     // Create a CellML API version of the RDF triple
 
     ObjRef<iface::rdf_api::DataSource> dataSource = mCellmlFile->rdfDataSource();
-
     ObjRef<iface::rdf_api::Resource> subject = already_AddRefd<iface::rdf_api::Resource>(dataSource->getURIReference(pRdfTriple->subject()->asString().toStdWString()));
     ObjRef<iface::rdf_api::Resource> predicate = already_AddRefd<iface::rdf_api::Resource>(dataSource->getURIReference(pRdfTriple->predicate()->asString().toStdWString()));
     ObjRef<iface::rdf_api::Node> object = already_AddRefd<iface::rdf_api::Node>(dataSource->getURIReference(pRdfTriple->object()->asString().toStdWString()));
@@ -601,14 +596,8 @@ CellmlFileRdfTriple * CellmlFileRdfTriples::add(CellmlFileRdfTriple *pRdfTriple)
     subject->createTripleOutOf(predicate, object);
 
     // Keep track of the CellML API version of the RDF triple in pRdfTriple
-    // Note: in debug mode, we also check that we actually managed to retrieve
-    //       the CellML API version of our RDF triple...
-
-    ObjRef<iface::rdf_api::Triple> rdfTriple = subject->getTripleOutOfByPredicateAndObject(predicate, object);
-
-    Q_ASSERT(rdfTriple);
 
-    pRdfTriple->setRdfTriple(rdfTriple);
+    pRdfTriple->setRdfTriple(subject->getTripleOutOfByPredicateAndObject(predicate, object));
 
     // An RDF triple has been added, so update the CellML file's modified status