diff --git a/src/algorithms/signal_source/adapters/fifo_signal_source.cc b/src/algorithms/signal_source/adapters/fifo_signal_source.cc
index c7854f809..3730a9e52 100644
--- a/src/algorithms/signal_source/adapters/fifo_signal_source.cc
+++ b/src/algorithms/signal_source/adapters/fifo_signal_source.cc
@@ -18,14 +18,12 @@
 #include "fifo_signal_source.h"
 #include "configuration_interface.h"
 #include "fifo_reader.h"
-#include "gnss_sdr_filesystem.h"
 #include "gnss_sdr_flags.h"
 #include "gnss_sdr_string_literals.h"
-#include "gnss_sdr_valve.h"
 #include <glog/logging.h>
+#include <gnuradio/blocks/file_sink.h>
+#include <gnuradio/blocks/file_source.h>
 #include <cmath>  // ceil, floor
-#include <fstream>
-#include <utility>  // move
 
 
 using namespace std::string_literals;
diff --git a/src/algorithms/signal_source/adapters/fifo_signal_source.h b/src/algorithms/signal_source/adapters/fifo_signal_source.h
index e46d22855..1a637445f 100644
--- a/src/algorithms/signal_source/adapters/fifo_signal_source.h
+++ b/src/algorithms/signal_source/adapters/fifo_signal_source.h
@@ -16,26 +16,21 @@
  * -----------------------------------------------------------------------------
  */
 
-#ifndef GNSS_SDR_FIFO_SOURCE_BASE_H
-#define GNSS_SDR_FIFO_SOURCE_BASE_H
+#ifndef GNSS_SDR_FIFO_SIGNAL_SOURCE_H
+#define GNSS_SDR_FIFO_SIGNAL_SOURCE_H
 
 #include "concurrent_queue.h"
-#include "file_source_base.h"
-#include "gnss_block_interface.h"
-#include <gnuradio/blocks/file_source.h>
-#include <gnuradio/blocks/throttle.h>
+#include "signal_source_base.h"
 #include <pmt/pmt.h>
-#include <tuple>
 
-// for dump
-#include <gnuradio/blocks/file_sink.h>
-#include <cstddef>
-#include <string>
 
+/** \addtogroup Signal_Source
+ * \{ */
+/** \addtogroup Signal_Source_adapters
+ * \{ */
 
 class ConfigurationInterface;
 
-
 //! \brief Class that reads a sample stream from a Unix fifo
 //!
 //! This class supports the following properties:
@@ -79,5 +74,6 @@ private:
     const std::string dump_filename_;
 };
 
-
-#endif
+/** \} */
+/** \} */
+#endif  // GNSS_SDR_FIFO_SIGNAL_SOURCE_H