diff --git a/src/algorithms/signal_source/libs/gnss_sdr_valve.h b/src/algorithms/signal_source/libs/gnss_sdr_valve.h
index 0ab0d08ab..9bd90a188 100644
--- a/src/algorithms/signal_source/libs/gnss_sdr_valve.h
+++ b/src/algorithms/signal_source/libs/gnss_sdr_valve.h
@@ -65,6 +65,10 @@ public:
         gr_vector_const_void_star &input_items,
         gr_vector_void_star &output_items);
 
+    Gnss_Sdr_Valve(size_t sizeof_stream_item,
+        uint64_t nitems,
+        gr::msg_queue::sptr queue, bool stop_flowgraph);
+
 private:
     friend boost::shared_ptr<gr::block> gnss_sdr_make_valve(
         size_t sizeof_stream_item,
@@ -77,10 +81,6 @@ private:
         gr::msg_queue::sptr queue,
         bool stop_flowgraph);
 
-    Gnss_Sdr_Valve(size_t sizeof_stream_item,
-        uint64_t nitems,
-        gr::msg_queue::sptr queue, bool stop_flowgraph);
-
     uint64_t d_nitems;
     uint64_t d_ncopied_items;
     gr::msg_queue::sptr d_queue;