diff --git a/include/gnss/processor/processor_gnss_fix.h b/include/gnss/processor/processor_gnss_fix.h
index c1ec2de7728a7782ea01f4fcf6b23446c7b6aeea..443f14bb4538f0250919e25c6c564e0d11c9b31f 100644
--- a/include/gnss/processor/processor_gnss_fix.h
+++ b/include/gnss/processor/processor_gnss_fix.h
@@ -81,13 +81,13 @@ class ProcessorGnssFix : public ProcessorBase
         *
         * Returns true if the key frame should be stored
         */
-        virtual bool storeKeyFrame(FrameBasePtr);
+        virtual bool storeKeyFrame(FrameBasePtr) override;
 
         /** \brief store capture
         *
         * Returns true if the capture should be stored
         */
-        virtual bool storeCapture(CaptureBasePtr);
+        virtual bool storeCapture(CaptureBasePtr) override;
 
         virtual bool voteForKeyFrame() const override;