diff --git a/ports/attiny861/poly_cfg.h b/ports/attiny861/poly_cfg.h
index ddeab84..6e9da55 100644
--- a/ports/attiny861/poly_cfg.h
+++ b/ports/attiny861/poly_cfg.h
@@ -21,6 +21,6 @@
  * MA  02110-1301  USA
  */
 
-#define SYNTH_FREQ		(16000)
+#define SYNTH_FREQ		(8000)
 
 #endif