diff --git a/alethzero/MainWin.cpp b/alethzero/MainWin.cpp
index 223eee951..813c2c745 100644
--- a/alethzero/MainWin.cpp
+++ b/alethzero/MainWin.cpp
@@ -284,7 +284,7 @@ Main::~Main()
 	writeSettings();
 }
 
-string Main::fromRaw(h256 const&_n, unsigned* _inc)
+string Main::fromRaw(h256 const& _n, unsigned* _inc)
 {
 	if (_n)
 	{
diff --git a/libevmasm/Assembly.h b/libevmasm/Assembly.h
index 1457173bc..5814c16e0 100644
--- a/libevmasm/Assembly.h
+++ b/libevmasm/Assembly.h
@@ -112,7 +112,7 @@ protected:
 	unsigned bytesRequired() const;
 
 private:
-	Json::Value streamAsmJson(std::ostream& _out, const StringMap &_sourceCodes) const;
+	Json::Value streamAsmJson(std::ostream& _out, StringMap const& _sourceCodes) const;
 	std::ostream& streamAsm(std::ostream& _out, std::string const& _prefix, StringMap const& _sourceCodes) const;
 	Json::Value createJsonValue(std::string _name, int _begin, int _end, std::string _value = std::string(), std::string _jumpType = std::string()) const;