diff --git a/cfg.c b/cfg.c
index be04a887..c2ed0648 100644
--- a/cfg.c
+++ b/cfg.c
@@ -1,60 +1,60 @@
 #include "config.h"
 
 #include <pthread.h>
 #include <unistd.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "cfg.h"
 #include "libtap.h"
-#include "utils.h"
 
 struct knet_cfg *knet_get_iface(const char *name, int create)
 {
 	struct knet_cfg *knet_iface = knet_cfg_head.knet_cfg;
 	int found = 0;
 
 	while (knet_iface != NULL) {
 		if (!strcmp(tap_get_name(knet_iface->cfg_eth.tap), name)) {
 			found = 1;
 			break;
 		}
 		knet_iface = knet_iface->next;
 	}
 
 	if ((!found) && (create)) {
 		knet_iface = malloc(sizeof(struct knet_cfg));
 		if (!knet_iface)
 			goto out_clean;
 
 		memset(knet_iface, 0, sizeof(struct knet_cfg));
 
 		knet_iface->cfg_ring.base_port = KNET_RING_DEFPORT;
 
 		knet_iface->next = knet_cfg_head.knet_cfg;
 		knet_cfg_head.knet_cfg = knet_iface;
 	}
 
 out_clean:
 
 	return knet_iface;
 }
 
 void knet_destroy_iface(struct knet_cfg *knet_iface)
 {
 	struct knet_cfg *knet_iface_tmp = knet_cfg_head.knet_cfg;
 	struct knet_cfg *knet_iface_prev = knet_cfg_head.knet_cfg;
 
 	while (knet_iface_tmp != knet_iface) {
 		knet_iface_prev = knet_iface_tmp;
 		knet_iface_tmp = knet_iface_tmp->next;
 	}
 
 	if (knet_iface_tmp == knet_iface) {
 		if (knet_iface_tmp == knet_iface_prev) {
 			knet_cfg_head.knet_cfg = knet_iface_tmp->next;
 		} else {
 			knet_iface_prev->next = knet_iface_tmp->next;
 		}
 		free(knet_iface);
 	}
 }