diff --git a/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h b/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
index 85ce9eb2a..55758031d 100644
--- a/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
+++ b/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
@@ -50,7 +50,7 @@ public:
 
     ~Ad9361FpgaSignalSource();
 
-    void start();
+    void start() override;
 
     inline std::string role() override
     {