diff --git a/source/lib/xmp_core/ParseRDF.cpp b/source/lib/xmp_core/ParseRDF.cpp
index 0b69e31..4ca5b00 100644
--- a/source/lib/xmp_core/ParseRDF.cpp
+++ b/source/lib/xmp_core/ParseRDF.cpp
@@ -711,7 +711,7 @@ void RDF_Parser::FixupQualifiedNode ( XMP_Node * xmpParent )
 	// value node's children to be the parent's children. Delete the now useless value node.
 	
 	XMP_Assert ( xmpParent->options & (kXMP_PropValueIsStruct | kRDF_HasValueElem) );
-	xmpParent->options &= ~ (kXMP_PropValueIsStruct | kRDF_HasValueElem);
+	xmpParent->options &= ~ (static_cast<unsigned long>(kXMP_PropValueIsStruct) | static_cast<unsigned long>(kRDF_HasValueElem));
 	xmpParent->options |= valueNode->options;
 	
 	xmpParent->value.swap ( valueNode->value );
@@ -725,7 +725,7 @@ void RDF_Parser::FixupQualifiedNode ( XMP_Node * xmpParent )
 	}
 
 	delete valueNode;
-	
+
 }	// RDF_Parser::FixupQualifiedNode
 
 // =================================================================================================
diff --git a/source/lib/xmp_core/XMPCore_Impl.cpp b/source/lib/xmp_core/XMPCore_Impl.cpp
index f98b717..c345295 100644
--- a/source/lib/xmp_core/XMPCore_Impl.cpp
+++ b/source/lib/xmp_core/XMPCore_Impl.cpp
@@ -853,7 +853,7 @@ FindQualifierNode	( XMP_Node *		parent,
 	
 	if ( (qualNode == 0) && createNodes ) {
 
-		qualNode = new XMP_Node ( parent, qualName, (kXMP_PropIsQualifier | kXMP_NewImplicitNode) );
+		qualNode = new XMP_Node ( parent, qualName, (static_cast<unsigned long>(kXMP_PropIsQualifier) | static_cast<unsigned long>(kXMP_NewImplicitNode)) );
 		parent->options |= kXMP_PropHasQualifiers;
 
 		const bool isLang 	 = XMP_LitMatch ( qualName, "xml:lang" );