diff --git a/tools/atrf-path/atrf-path.c b/tools/atrf-path/atrf-path.c
index ac39eaa..ee2f5e1 100644
--- a/tools/atrf-path/atrf-path.c
+++ b/tools/atrf-path/atrf-path.c
@@ -152,7 +152,7 @@ int do_sweep(const struct sweep *sweep, struct sample *res)
 }
 
 
-static void print_sweep(const struct sweep *sweep, const struct sample *res)
+void print_sweep(const struct sweep *sweep, const struct sample *res)
 {
 	int chan;
 
diff --git a/tools/atrf-path/gui.c b/tools/atrf-path/gui.c
index b64e192..9bb7c3e 100644
--- a/tools/atrf-path/gui.c
+++ b/tools/atrf-path/gui.c
@@ -261,6 +261,10 @@ int gui(const struct sweep *sweep, int sweeps)
 					if (cycle && !fail)
 						return 1;
 					break;
+				case SDLK_d:
+					if (cycle)
+						print_sweep(sweep, res);
+					break;
 				case SDLK_q:
 					return 0;
 				default:
diff --git a/tools/atrf-path/sweep.h b/tools/atrf-path/sweep.h
index 80dcae4..b065b07 100644
--- a/tools/atrf-path/sweep.h
+++ b/tools/atrf-path/sweep.h
@@ -53,4 +53,6 @@ struct sample {
 
 int do_sweep(const struct sweep *sweep, struct sample *res);
 
+void print_sweep(const struct sweep *sweep, const struct sample *res);
+
 #endif /* !SWEEP_H */