diff --git a/sw/airborne/modules/computer_vision/viewvideo.c b/sw/airborne/modules/computer_vision/viewvideo.c
index 656f9d3663..bf518e622c 100644
--- a/sw/airborne/modules/computer_vision/viewvideo.c
+++ b/sw/airborne/modules/computer_vision/viewvideo.c
@@ -110,8 +110,8 @@ struct viewvideo_t viewvideo = {
  * Handles all the video streaming and saving of the image shots
  * This is a sepereate thread, so it needs to be thread safe!
  */
-bool_t viewvideo_function(struct image_t *img);
-bool_t viewvideo_function(struct image_t *img)
+struct image_t* viewvideo_function(struct image_t *img);
+struct image_t* viewvideo_function(struct image_t *img)
 {
   // Resize image if needed
   struct image_t img_small;