diff --git a/src/insets/InsetIndex.cpp b/src/insets/InsetIndex.cpp
index 70a16f6e3c..84b5889d4f 100644
--- a/src/insets/InsetIndex.cpp
+++ b/src/insets/InsetIndex.cpp
@@ -24,6 +24,7 @@
 #include "LaTeXFeatures.h"
 #include "Lexer.h"
 #include "MetricsInfo.h"
+#include "output_latex.h"
 #include "sgml.h"
 #include "TocBackend.h"
 
@@ -560,7 +561,8 @@ bool InsetPrintIndex::hasSettings() const
 	return buffer().masterBuffer()->params().use_indices;
 }
 
-docstring InsetPrintIndex::xhtml(odocstream &, OutputParams const &) const
+
+docstring InsetPrintIndex::xhtml(XHTMLStream &, OutputParams const &) const
 {
 	return docstring();
 }
diff --git a/src/insets/InsetIndex.h b/src/insets/InsetIndex.h
index b7427a1ed0..d0b0d1da29 100644
--- a/src/insets/InsetIndex.h
+++ b/src/insets/InsetIndex.h
@@ -101,13 +101,13 @@ public:
 	///
 	static ParamInfo const & findInfo(std::string const &);
 	///
-	static std::string defaultCommand() { return "printindex"; };
+	static std::string defaultCommand() { return "printindex"; }
 	///
 	static bool isCompatibleCommand(std::string const & s);
 	///
 	int latex(odocstream &, OutputParams const &) const;
 	/// Does nothing yet.
-	docstring xhtml(odocstream &, OutputParams const &) const;
+	docstring xhtml(XHTMLStream &, OutputParams const &) const;
 	///
 	void doDispatch(Cursor & cur, FuncRequest & cmd);
 	///