diff --git a/src/algorithms/signal_source/adapters/fifo_signal_source.cc b/src/algorithms/signal_source/adapters/fifo_signal_source.cc
index 27b96a0e6..9ab222ebf 100644
--- a/src/algorithms/signal_source/adapters/fifo_signal_source.cc
+++ b/src/algorithms/signal_source/adapters/fifo_signal_source.cc
@@ -28,7 +28,7 @@ using namespace std::string_literals;
 
 FifoSignalSource::FifoSignalSource(ConfigurationInterface const* configuration,
     std::string const& role, unsigned int in_streams, unsigned int out_streams,
-    Concurrent_Queue<pmt::pmt_t>* queue)
+    [[maybe_unused]] Concurrent_Queue<pmt::pmt_t>* queue)
     : SignalSourceBase(configuration, role, "Fifo_Signal_Source"s),
       item_size_(sizeof(gr_complex)),  // currenty output item size is always gr_complex
       fifo_reader_(FifoReader::make(configuration->property(role + ".filename"s, "../data/example_capture.dat"s),
diff --git a/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.cc b/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.cc
index 092d6dcd3..4eb7d53cf 100644
--- a/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.cc
+++ b/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.cc
@@ -101,9 +101,14 @@ size_t FifoReader::read_gr_complex(int noutput_items, gr_vector_void_star &outpu
                 }
             else
                 {
-                    LOG(ERROR) << "unhandled FIFO event";
+                    fifo_error_output();
                     break;
                 }
         }
     return items_retrieved;
 }
+
+void FifoReader::fifo_error_output() const
+{
+    LOG(ERROR) << "unhandled FIFO event";
+}
diff --git a/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.h b/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.h
index a955bd474..4ddf281cd 100644
--- a/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.h
+++ b/src/algorithms/signal_source/gnuradio_blocks/fifo_reader.h
@@ -26,7 +26,6 @@
  * \{ */
 /** \addtogroup Signal_Source_gnuradio_blocks
  * \{ */
-
 class FifoReader : virtual public gr::sync_block
 {
 public:
@@ -80,13 +79,17 @@ private:
                     }
                 else
                     {
-                        LOG(ERROR) << "unhandled FIFO event";
+                        fifo_error_output();
                         break;
                     }
             }
         return items_retrieved;
     }
 
+    //! this function moves logging output from this header into the source file
+    //! thereby eliminating the need to include glog/logging.h in this header
+    void fifo_error_output() const;
+
     const std::string file_name_;
     const std::string sample_type_;
     std::ifstream fifo_;