diff --git a/examples/qc/runSampler.cxx b/examples/qc/runSampler.cxx
index b0faad57..952d3549 100644
--- a/examples/qc/runSampler.cxx
+++ b/examples/qc/runSampler.cxx
@@ -32,5 +32,5 @@ class Sampler : public FairMQDevice
 };
 
 namespace bpo = boost::program_options;
-void addCustomOptions(bpo::options_description& options) {}
+void addCustomOptions(bpo::options_description&) {}
 FairMQDevicePtr getDevice(const fair::mq::ProgOptions& /*config*/) { return new Sampler(); }
diff --git a/examples/qc/runSink.cxx b/examples/qc/runSink.cxx
index 281d63f5..844e0be5 100644
--- a/examples/qc/runSink.cxx
+++ b/examples/qc/runSink.cxx
@@ -21,5 +21,5 @@ class Sink : public FairMQDevice
 };
 
 namespace bpo = boost::program_options;
-void addCustomOptions(bpo::options_description& options) {}
+void addCustomOptions(bpo::options_description&) {}
 FairMQDevicePtr getDevice(const fair::mq::ProgOptions& /*config*/) { return new Sink(); }