diff --git a/src/mathed/InsetMathChar.cpp b/src/mathed/InsetMathChar.cpp
index 8e02c6a92c..7949c23099 100644
--- a/src/mathed/InsetMathChar.cpp
+++ b/src/mathed/InsetMathChar.cpp
@@ -175,10 +175,10 @@ void InsetMathChar::mathmlize(MathStream & ms) const
 	}
 	
 	char const * type = 
-		(isalpha(char_) || Encodings::isMathAlpha(char_))	
+		(isalpha(char_) || Encodings::isMathAlpha(char_))
 			? "mi" : "mo";
 	// we don't use MTag and ETag because we do not want the spacing
-	ms << "<" << type << ">" << char(char_) << "</" << type << ">";	
+	ms << "<" << type << ">" << char_type(char_) << "</" << type << ">";	
 }
 
 
diff --git a/src/mathed/MathStream.cpp b/src/mathed/MathStream.cpp
index 9ce8f9051a..ac511dd917 100644
--- a/src/mathed/MathStream.cpp
+++ b/src/mathed/MathStream.cpp
@@ -250,6 +250,32 @@ MathStream::MathStream(odocstream & os)
 {}
 
 
+void MathStream::cr()
+{
+	os() << '\n';
+	for (int i = 0; i < tab(); ++i)
+		os() << ' ';
+}
+
+
+void MathStream::defer(docstring const & s)
+{
+	deferred_ << s;
+}
+
+
+void MathStream::defer(string const & s)
+{
+	deferred_ << from_utf8(s);
+}
+
+
+docstring MathStream::deferred() const
+{ 
+	return deferred_.str();
+}
+
+
 MathStream & operator<<(MathStream & ms, MathAtom const & at)
 {
 	at->mathmlize(ms);
@@ -278,6 +304,13 @@ MathStream & operator<<(MathStream & ms, char c)
 }
 
 
+MathStream & operator<<(MathStream & ms, char_type c)
+{
+	ms.os() << c;
+	return ms;
+}
+
+
 MathStream & operator<<(MathStream & ms, MTag const & t)
 {
 	++ms.tab();
@@ -297,32 +330,6 @@ MathStream & operator<<(MathStream & ms, ETag const & t)
 }
 
 
-void MathStream::cr()
-{
-	os() << '\n';
-	for (int i = 0; i < tab(); ++i)
-		os() << ' ';
-}
-
-
-void MathStream::defer(docstring const & s)
-{
-	deferred_ << s;
-}
-
-
-void MathStream::defer(string const & s)
-{
-	deferred_ << from_utf8(s);
-}
-
-
-docstring MathStream::deferred() const
-{ 
-	return deferred_.str();
-}
-
-
 MathStream & operator<<(MathStream & ms, docstring const & s)
 {
 	ms.os() << s;
diff --git a/src/mathed/MathStream.h b/src/mathed/MathStream.h
index 51fbdd367e..c2eb3d2326 100644
--- a/src/mathed/MathStream.h
+++ b/src/mathed/MathStream.h
@@ -286,6 +286,8 @@ MathStream & operator<<(MathStream &, char const *);
 ///
 MathStream & operator<<(MathStream &, char);
 ///
+MathStream & operator<<(MathStream &, char_type);
+///
 MathStream & operator<<(MathStream &, MTag const &);
 ///
 MathStream & operator<<(MathStream &, ETag const &);