diff --git a/sys/net/sixlowpan/lowpan.c b/sys/net/sixlowpan/lowpan.c
index c418a14f58..c5f536d6b1 100644
--- a/sys/net/sixlowpan/lowpan.c
+++ b/sys/net/sixlowpan/lowpan.c
@@ -50,7 +50,7 @@ char addr_str[IPV6_MAX_ADDR_STR_LEN];
 #endif
 #include "debug.h"
 
-#define IP_PROCESS_STACKSIZE           	(KERNEL_CONF_STACKSIZE_DEFAULT * 6)
+#define IP_PROCESS_STACKSIZE           	(KERNEL_CONF_STACKSIZE_MAIN)
 #define NC_STACKSIZE                   	(KERNEL_CONF_STACKSIZE_DEFAULT)
 #define CON_STACKSIZE                  	(KERNEL_CONF_STACKSIZE_DEFAULT)
 #define LOWPAN_TRANSFER_BUF_STACKSIZE  	(KERNEL_CONF_STACKSIZE_DEFAULT)