diff --git a/src/mathed/math_macro.C b/src/mathed/math_macro.C
index 2d511683bf..984da2814d 100644
--- a/src/mathed/math_macro.C
+++ b/src/mathed/math_macro.C
@@ -202,6 +202,22 @@ void MathMacro::maplize(MapleStream & os) const
 }
 
 
+void MathMacro::mathmlize(MathMLStream & os) const
+{
+	expanded_ = tmplate_->xcell(0);
+	expanded_.data_.substitute(*this);
+	::mathmlize(expanded_.data_, os);
+}
+
+
+void MathMacro::octavize(OctaveStream & os) const
+{
+	expanded_ = tmplate_->xcell(0);
+	expanded_.data_.substitute(*this);
+	::octavize(expanded_.data_, os);
+}
+
+
 void MathMacro::normalize(NormalStream & os) const
 {
 	os << "[macro " << name() << " ";
diff --git a/src/mathed/math_macro.h b/src/mathed/math_macro.h
index bce7f5b0f2..036152a984 100644
--- a/src/mathed/math_macro.h
+++ b/src/mathed/math_macro.h
@@ -69,6 +69,10 @@ public:
 	///
 	void maplize(MapleStream &) const;
 	///
+	void mathmlize(MathMLStream &) const;
+	///
+	void octavize(OctaveStream &) const;
+	///
 	void write(WriteStream & os) const;
 
 private: