diff --git a/sys/net/network_layer/fib/fib.c b/sys/net/network_layer/fib/fib.c
index 9f638a5209..8c38cc0a8a 100644
--- a/sys/net/network_layer/fib/fib.c
+++ b/sys/net/network_layer/fib/fib.c
@@ -107,6 +107,9 @@ static int fib_find_entry(uint8_t *dst, size_t dst_size,
                 /* remove this entry if its lifetime expired */
                 fib_table[i].lifetime.seconds = 0;
                 fib_table[i].lifetime.microseconds = 0;
+                fib_table[i].global_flags = 0;
+                fib_table[i].next_hop_flags = 0;
+                fib_table[i].iface_id = KERNEL_PID_UNDEF;
 
                 if (fib_table[i].global != NULL) {
                     universal_address_rem(fib_table[i].global);