diff --git a/InterfaceHandler.cpp b/InterfaceHandler.cpp
index aacbbfd72..ea787c282 100644
--- a/InterfaceHandler.cpp
+++ b/InterfaceHandler.cpp
@@ -107,7 +107,7 @@ unique_ptr<string> InterfaceHandler::getABISolidityInterface(ContractDefinition
 			ret += "returns" + populateParameters(it.second->getReturnParameterNames(), it.second->getReturnParameterTypeNames());
 		else if (ret.back() == ' ')
 			ret.pop_back();
-		ret += "{}";
+		ret += ";";
 	}
 
 	return unique_ptr<string>(new string(ret + "}"));