MathClass of xrightarrow & co

diff --git a/src/mathed/InsetMathXArrow.h b/src/mathed/InsetMathXArrow.h
index f63eb2be192a1de19dad30613378a773c51a4039..722f4d58cd1d96ffe4e3fb172463ee73732aee1f 100644 (file)
--- a/src/mathed/InsetMathXArrow.h
+++ b/src/mathed/InsetMathXArrow.h
@@ -39,6 +39,8 @@ public:
        void validate(LaTeXFeatures & features) const;
        ///
        InsetCode lyxCode() const { return MATH_XARROW_CODE; }
+       ///
+       MathClass mathClass() const { return MC_REL; }
 
 private:
        virtual Inset * clone() const;