diff --git a/project/Assigner/assigner.c b/project/Assigner/assigner.c
index 5c7063323..7ba663677 100644
--- a/project/Assigner/assigner.c
+++ b/project/Assigner/assigner.c
@@ -16,7 +16,7 @@
 
 #define LOG_MODULE "Assigner"
 #define LOG_LEVEL LOG_LEVEL_INFO
-#define OPENING_PERIOD (30*CLOCK_SECOND)
+#define OPENING_PERIOD (300*CLOCK_SECOND)
 
 
 PROCESS(assigner_process, "Assigner process");
diff --git a/project/Assigner/assigner_fun.c b/project/Assigner/assigner_fun.c
index a09df3616..d011d82a0 100644
--- a/project/Assigner/assigner_fun.c
+++ b/project/Assigner/assigner_fun.c
@@ -61,7 +61,7 @@ bool bat_update(linkaddr_t src_cart_addr, uint8_t battery_level)
 	//looking for cart->address = address of who sent the message with the battery 
 	while(c)
 	{
-		if(linkaddr_cmp(&c->cart_address,&src_cart_addr) == 0)
+		if(linkaddr_cmp(&(c->cart_address),&src_cart_addr) == 0)
 			c = c->next;
 		else
 			break;