diff --git a/gui/graph_view.c b/gui/graph_view.c
index eeeabceb..31d56852 100644
--- a/gui/graph_view.c
+++ b/gui/graph_view.c
@@ -280,7 +280,7 @@ bool set_view_name(graph_view_handle view, const char * cname)
   return true;
 }
 
-canvas_handle get_current_canvas()
+canvas_handle get_current_canvas(void)
 {
   if (g_current_view == NULL)
   {
diff --git a/gui/graph_view.h b/gui/graph_view.h
index 071d3d27..8cfa35f2 100644
--- a/gui/graph_view.h
+++ b/gui/graph_view.h
@@ -49,7 +49,7 @@ void activate_view(graph_view_handle view);
 const char * get_view_name(graph_view_handle view);
 const char * get_view_opath(graph_view_handle view);
 bool set_view_name(graph_view_handle view, const char * name);
-canvas_handle get_current_canvas();
+canvas_handle get_current_canvas(void);
 
 ladish_app_supervisor_proxy_handle graph_view_get_app_supervisor(graph_view_handle view);
 bool app_run_custom(graph_view_handle view, const char * command, const char * name, bool run_in_terminal, uint8_t level);