diff --git a/src/mathed/InsetMathExFunc.cpp b/src/mathed/InsetMathExFunc.cpp
index 3398e9049a..5b79f60fa3 100644
--- a/src/mathed/InsetMathExFunc.cpp
+++ b/src/mathed/InsetMathExFunc.cpp
@@ -124,9 +124,7 @@ void InsetMathExFunc::mathematica(MathematicaStream & os) const
 
 void InsetMathExFunc::mathmlize(MathStream & os) const
 {
-	++os.tab(); os.cr(); os.os() << '<' << name_ << '>';
-	os << cell(0);
-	os.cr(); --os.tab(); os.os() << "</" << name_ << '>';
+	os.os() << "<mi>" << name_ << "</mi>" << "&af;" << cell(0);
 }