diff --git a/src/hyper.h b/src/hyper.h
index 215eb72..081c9b0 100644
--- a/src/hyper.h
+++ b/src/hyper.h
@@ -43,7 +43,7 @@ struct hyper_pod {
 	struct list_head	exec_head;
 	//struct list_head	ce_head;
 	char			*hostname;
-	char			*tag;
+	char			*share_tag;
 	int			init_pid;
 	uint32_t		c_num;
 	uint32_t		i_num;
diff --git a/src/init.c b/src/init.c
index 58c2ecb..b75a88f 100644
--- a/src/init.c
+++ b/src/init.c
@@ -555,7 +555,7 @@ static int hyper_setup_shared(struct hyper_pod *pod)
 {
 	struct vbsf_mount_info_new mntinf;
 
-	if (pod->tag == NULL) {
+	if (pod->share_tag == NULL) {
 		fprintf(stdout, "no shared directroy\n");
 		return 0;
 	}
@@ -573,7 +573,7 @@ static int hyper_setup_shared(struct hyper_pod *pod)
 	mntinf.length		= sizeof(mntinf);
 	mntinf.dmode		= ~0U;
 	mntinf.fmode		= ~0U;
-	strcpy(mntinf.name, pod->tag);
+	strcpy(mntinf.name, pod->share_tag);
 
 	if (mount(NULL, "/tmp/hyper/shared", "vboxsf",
 		  MS_NODEV, &mntinf) < 0) {
@@ -586,7 +586,7 @@ static int hyper_setup_shared(struct hyper_pod *pod)
 #else
 static int hyper_setup_shared(struct hyper_pod *pod)
 {
-	if (pod->tag == NULL) {
+	if (pod->share_tag == NULL) {
 		fprintf(stdout, "no shared directroy\n");
 		return 0;
 	}
@@ -596,7 +596,7 @@ static int hyper_setup_shared(struct hyper_pod *pod)
 		return -1;
 	}
 
-	if (mount(pod->tag, "/tmp/hyper/shared", "9p",
+	if (mount(pod->share_tag, "/tmp/hyper/shared", "9p",
 		  MS_MGC_VAL| MS_NODEV, "trans=virtio,cache=loose") < 0) {
 
 		perror("fail to mount shared dir");
@@ -917,16 +917,16 @@ static void hyper_cleanup_hostname(struct hyper_pod *pod)
 
 static void hyper_cleanup_shared(struct hyper_pod *pod)
 {
-	if (pod->tag == NULL) {
+	if (pod->share_tag == NULL) {
 		fprintf(stdout, "no shared directroy\n");
 		return;
 	}
 
-	free(pod->tag);
-	pod->tag = NULL;
+	free(pod->share_tag);
+	pod->share_tag = NULL;
 	if (umount("/tmp/hyper/shared") < 0 &&
 	    umount2("/tmp/hyper/shared", MNT_DETACH)) {
-		perror("fail to umount 9p dir");
+		perror("fail to umount shared dir");
 		return;
 	}
 
diff --git a/src/parse.c b/src/parse.c
index dfb11e3..104493d 100644
--- a/src/parse.c
+++ b/src/parse.c
@@ -510,8 +510,8 @@ realloc:
 
 			i += next;
 		} else if (json_token_streq(json, t, "shareDir") && t->size == 1) {
-			pod->tag = strdup(json_token_str(json, &toks[++i]));
-			fprintf(stdout, "9p tag is %s\n", pod->tag);
+			pod->share_tag = strdup(json_token_str(json, &toks[++i]));
+			fprintf(stdout, "share tag is %s\n", pod->share_tag);
 		} else if (json_token_streq(json, t, "hostname") && t->size == 1) {
 			pod->hostname = strdup(json_token_str(json, &toks[++i]));
 			fprintf(stdout, "hostname is %s\n", pod->hostname);