diff --git a/src/mathed/InsetMathNest.cpp b/src/mathed/InsetMathNest.cpp
index 85d0be52b8..d567548787 100644
--- a/src/mathed/InsetMathNest.cpp
+++ b/src/mathed/InsetMathNest.cpp
@@ -337,7 +337,7 @@ MathData InsetMathNest::glue() const
 void InsetMathNest::write(WriteStream & os) const
 {
 	ModeSpecifier specifier(os, currentMode());
-	docstring const latex_name = name().c_str();
+	docstring const latex_name = name();
 	os << '\\' << latex_name;
 	for (size_t i = 0; i < nargs(); ++i)
 		os << '{' << cell(i) << '}';
@@ -352,7 +352,7 @@ void InsetMathNest::write(WriteStream & os) const
 
 void InsetMathNest::normalize(NormalStream & os) const
 {
-	os << '[' << name().c_str();
+	os << '[' << name();
 	for (size_t i = 0; i < nargs(); ++i)
 		os << ' ' << cell(i);
 	os << ']';
diff --git a/src/mathed/MathMacroTemplate.cpp b/src/mathed/MathMacroTemplate.cpp
index e889deb226..11b9ae90c6 100644
--- a/src/mathed/MathMacroTemplate.cpp
+++ b/src/mathed/MathMacroTemplate.cpp
@@ -1141,7 +1141,7 @@ void MathMacroTemplate::write(WriteStream & os, bool overwriteRedefinition) cons
 			else
 				os << "\\newcommandx";
 
-			os << "\\" << name().c_str()
+			os << "\\" << name()
 			   << "[" << numargs_ << "]"
 			   << "[usedefault, addprefix=\\global";
 			for (int i = 0; i < optionals_; ++i) {
@@ -1158,7 +1158,7 @@ void MathMacroTemplate::write(WriteStream & os, bool overwriteRedefinition) cons
 		} else {
 			// macros without optionals use standard _global_ \def macros:
 			// \global\def\foo#1#2{#1,#2}
-			os << "\\global\\def\\" << name().c_str();
+			os << "\\global\\def\\" << name();
 			docstring param = from_ascii("#0");
 			for (int i = 1; i <= numargs_; ++i) { 
 				param[1] = '0' + i;
@@ -1173,7 +1173,7 @@ void MathMacroTemplate::write(WriteStream & os, bool overwriteRedefinition) cons
 			os << "\\renewcommand";
 		else
 			os << "\\newcommand";
-		os << "{\\" << name().c_str() << '}';
+		os << "{\\" << name() << '}';
 		if (numargs_ > 0)
 			os << '[' << numargs_ << ']';