diff --git a/addons/cppcheckdata.py b/addons/cppcheckdata.py
index 003bc50ab..7f6f9fb1e 100755
--- a/addons/cppcheckdata.py
+++ b/addons/cppcheckdata.py
@@ -608,13 +608,13 @@ class Variable:
         self.access = element.get('access')
         self.scopeId = element.get('scope')
         self.scope = None
-        self.isArgument = element.get('isArgument') == 'true'
+        self.isArgument = (self.access and self.access == 'Argument')
         self.isArray = element.get('isArray') == 'true'
         self.isClass = element.get('isClass') == 'true'
         self.isConst = element.get('isConst') == 'true'
-        self.isGlobal = element.get('access') == 'Global'
+        self.isGlobal = (self.access and self.access == 'Global')
         self.isExtern = element.get('isExtern') == 'true'
-        self.isLocal = element.get('isLocal') == 'true'
+        self.isLocal = (self.access and self.access == 'Local')
         self.isPointer = element.get('isPointer') == 'true'
         self.isReference = element.get('isReference') == 'true'
         self.isStatic = element.get('isStatic') == 'true'
diff --git a/lib/symboldatabase.cpp b/lib/symboldatabase.cpp
index 8b65b64f2..379b6c71c 100644
--- a/lib/symboldatabase.cpp
+++ b/lib/symboldatabase.cpp
@@ -3800,15 +3800,14 @@ void SymbolDatabase::printXml(std::ostream &out) const
         out << " scope=\""          << var->scope() << '\"';
         if (var->valueType())
             out << " constness=\""      << var->valueType()->constness << '\"';
-        out << " isArgument=\""     << var->isArgument() << '\"';
         out << " isArray=\""        << var->isArray() << '\"';
         out << " isClass=\""        << var->isClass() << '\"';
         out << " isConst=\""        << var->isConst() << '\"';
         out << " isExtern=\""       << var->isExtern() << '\"';
-        out << " isLocal=\""        << var->isLocal() << '\"';
         out << " isPointer=\""      << var->isPointer() << '\"';
         out << " isReference=\""    << var->isReference() << '\"';
         out << " isStatic=\""       << var->isStatic() << '\"';
+        out << " isVolatile=\""     << var->isVolatile() << '\"';
         out << "/>" << std::endl;
     }
     out << "  </variables>" << std::endl;