diff --git a/src/management/nfd-control-parameters.cpp b/src/management/nfd-control-parameters.cpp
index f8ce363..d777843 100644
--- a/src/management/nfd-control-parameters.cpp
+++ b/src/management/nfd-control-parameters.cpp
@@ -95,7 +95,7 @@
 template size_t
 ControlParameters::wireEncode<encoding::EstimatorTag>(EncodingImpl<encoding::EstimatorTag>&) const;
 
-const Block&
+Block
 ControlParameters::wireEncode() const
 {
   if (m_wire.hasWire())