diff --git a/libevmcore/Assembly.cpp b/libevmcore/Assembly.cpp
index cb4af28c9..a5ea0211e 100644
--- a/libevmcore/Assembly.cpp
+++ b/libevmcore/Assembly.cpp
@@ -189,35 +189,35 @@ Json::Value Assembly::streamAsmJson(ostream& _out, string const& _prefix, String
 		{
 		case Operation:
 			currentCollection.push_back(
-						createJsonValue(instructionInfo(i.instruction()).name, i.getLocation().start, i.getLocation().end, i.getJumpTypeAsString()));
+				createJsonValue(instructionInfo(i.instruction()).name, i.getLocation().start, i.getLocation().end, i.getJumpTypeAsString()));
 			break;
 		case Push:
 		{
 			std::stringstream hexStr;
-			hexStr << hex << (unsigned)i.data();
+			hexStr << hex << i.data();
 			currentCollection.push_back(
-						createJsonValue(string("PUSH"), i.getLocation().start, i.getLocation().end, hexStr.str(), i.getJumpTypeAsString()));
+				createJsonValue(string("PUSH"), i.getLocation().start, i.getLocation().end, hexStr.str(), i.getJumpTypeAsString()));
 		}
 			break;
 		case PushString:
 			currentCollection.push_back(
-						createJsonValue(string("PUSH tag"), i.getLocation().start, i.getLocation().end, m_strings.at((h256)i.data())));
+				createJsonValue(string("PUSH tag"), i.getLocation().start, i.getLocation().end, m_strings.at((h256)i.data())));
 			break;
 		case PushTag:
 			currentCollection.push_back(
-						createJsonValue(string("PUSH [tag]"), i.getLocation().start, i.getLocation().end, string(i.data())));
+				createJsonValue(string("PUSH [tag]"), i.getLocation().start, i.getLocation().end, string(i.data())));
 			break;
 		case PushSub:
 			currentCollection.push_back(
-						createJsonValue(string("PUSH"), i.getLocation().start, i.getLocation().end, string("[$]" + string(h256(i.data()).abridged()))));
+				createJsonValue(string("PUSH"), i.getLocation().start, i.getLocation().end, string("[$]" + dev::toString(h256(i.data())))));
 			break;
 		case PushSubSize:
 			currentCollection.push_back(
-						createJsonValue(string("PUSH"), i.getLocation().start, i.getLocation().end, string("#[$]" + string(h256(i.data()).abridged()))));
+				createJsonValue(string("PUSH"), i.getLocation().start, i.getLocation().end, string("#[$]" + dev::toString(h256(i.data())))));
 			break;
 		case PushProgramSize:
 			currentCollection.push_back(
-						createJsonValue(string("PUSHSIZE"), i.getLocation().start, i.getLocation().end));
+				createJsonValue(string("PUSHSIZE"), i.getLocation().start, i.getLocation().end));
 			break;
 		case Tag:
 		{
diff --git a/libevmcore/Assembly.h b/libevmcore/Assembly.h
index 86169a93d..86fd222b3 100644
--- a/libevmcore/Assembly.h
+++ b/libevmcore/Assembly.h
@@ -92,10 +92,11 @@ public:
 	bytes assemble() const;
 	Assembly& optimise(bool _enable);
 	Json::Value stream(
-			std::ostream& _out,
-			std::string const& _prefix = "",
-			const StringMap &_sourceCodes = StringMap(),
-			bool _inJsonFormat = false) const;
+		std::ostream& _out,
+		std::string const& _prefix = "",
+		const StringMap &_sourceCodes = StringMap(),
+		bool _inJsonFormat = false
+	) const;
 
 protected:
 	std::string getLocationFromSources(StringMap const& _sourceCodes, SourceLocation const& _location) const;
@@ -104,10 +105,11 @@ protected:
 
 private:
 	Json::Value streamAsmJson(
-			std::ostream& _out,
-			const std::string &_prefix,
-			const StringMap &_sourceCodes,
-			bool _inJsonFormat) const;
+		std::ostream& _out,
+		const std::string &_prefix,
+		const StringMap &_sourceCodes,
+		bool _inJsonFormat
+	) const;
 	std::ostream& streamAsm(std::ostream& _out, std::string const& _prefix, StringMap const& _sourceCodes) const;
 	Json::Value createJsonValue(std::string _name, int _locationX, int _locationY, std::string _value = std::string(), std::string _jumpType = std::string()) const;