diff --git a/InterfaceHandler.cpp b/InterfaceHandler.cpp
index e266f8d61..a49c4dc3f 100644
--- a/InterfaceHandler.cpp
+++ b/InterfaceHandler.cpp
@@ -60,10 +60,14 @@ std::unique_ptr<std::string> InterfaceHandler::getABIInterface(ContractDefinitio
 		method["type"] = "function";
 		method["name"] = it.second->getDeclaration().getName();
 		method["constant"] = it.second->isConstant();
-		method["inputs"] = populateParameters(externalFunctionType->getParameterNames(),
-											  externalFunctionType->getParameterTypeNames());
-		method["outputs"] = populateParameters(externalFunctionType->getReturnParameterNames(),
-											   externalFunctionType->getReturnParameterTypeNames());
+		method["inputs"] = populateParameters(
+			externalFunctionType->getParameterNames(),
+			externalFunctionType->getParameterTypeNames()
+		);
+		method["outputs"] = populateParameters(
+			externalFunctionType->getReturnParameterNames(),
+			externalFunctionType->getReturnParameterTypeNames()
+		);
 		abi.append(method);
 	}
 	if (_contractDef.getConstructor())