diff --git a/epicardium/ble/ble_main.c b/epicardium/ble/ble_main.c
index eefbb58e57c5cca3dfa08836e91e09a0adba4806..86a1ab153b117895d1c7bc9f62888e437661a0db 100644
--- a/epicardium/ble/ble_main.c
+++ b/epicardium/ble/ble_main.c
@@ -88,7 +88,7 @@ typedef union
 static const appAdvCfg_t fitAdvCfg =
 {
   {60000,     0,     0},                  /*! Advertising durations in ms */
-  {  800,     0,     0}                   /*! Advertising intervals in 0.625 ms units */
+  {500/0.625,     4000/0.625,     0}                   /*! Advertising intervals in 0.625 ms units */
 };
 
 /*! configurable parameters for slave */