diff --git a/firmware/src_simtrace/wwan_perst.c b/firmware/src_simtrace/wwan_perst.c
index add236de..70c8fdd6 100644
--- a/firmware/src_simtrace/wwan_perst.c
+++ b/firmware/src_simtrace/wwan_perst.c
@@ -10,7 +10,7 @@
 #include "wwan_perst.h"
 #include "osmocom/core/timer.h"
 
-#define PERST_DURATION_MS 1
+#define PERST_DURATION_MS 300
 
 #ifdef PIN_PERST1
 static const Pin pin_perst1 = PIN_PERST1;