--- a/src/modules/bugs/functions/Transpose.h
+++ b/src/modules/bugs/functions/Transpose.h
@@ -18,6 +18,7 @@
 	bool checkParameterDim(std::vector<std::vector<unsigned int> > const &dims) const;
 	bool isScale(std::vector<bool> const &mask,
 		     std::vector<bool> const &isfixed) const;
+	bool isDiscreteValued(std::vector<bool> const &mask) const;
     };
 
 }}