diff --git a/src/lmic_config.h b/src/lmic_config.h
index a28f24a5..ea9c532b 100644
--- a/src/lmic_config.h
+++ b/src/lmic_config.h
@@ -34,7 +34,7 @@
 // faster or slower. This causes the transceiver to be earlier switched on,
 // so consuming more power. You may sharpen (reduce) this value if you are
 // limited on battery.
-#define CLOCK_ERROR_PROCENTAGE 3
+#define CLOCK_ERROR_PROCENTAGE 30
 
 // Set this to 1 to enable some basic debug output (using printf) about
 // RF settings used during transmission and reception. Set to 2 to