diff --git a/tools/acrn-manager/acrn_mngr.c b/tools/acrn-manager/acrn_mngr.c
index 6d8b79b8f..46cf7a348 100644
--- a/tools/acrn-manager/acrn_mngr.c
+++ b/tools/acrn-manager/acrn_mngr.c
@@ -479,8 +479,11 @@ static int connect_to_server(const char *name)
 	}
 
 	mfd->addr.sun_family = AF_UNIX;
-	snprintf(mfd->addr.sun_path, sizeof(mfd->addr.sun_path),
+	ret = snprintf(mfd->addr.sun_path, sizeof(mfd->addr.sun_path),
 		 "/run/acrn/mngr/%s", s_name);
+	if ((ret >= 0) && (ret < strlen(s_name)))
+		printf("WARN: %s is truncated\n", s_name);
+
 	closedir(dir);
 	ret =
 	    connect(mfd->fd, (struct sockaddr *)&mfd->addr, sizeof(mfd->addr));
diff --git a/tools/acrn-manager/acrnd.c b/tools/acrn-manager/acrnd.c
index 33dbb53c5..cf5dcc1ec 100644
--- a/tools/acrn-manager/acrnd.c
+++ b/tools/acrn-manager/acrnd.c
@@ -175,7 +175,7 @@ static int load_timer_list(void)
 		}
 
 		memset(arg.name, 0, sizeof(arg.name));
-		strncpy(arg.name, s1, sizeof(s1));
+		strncpy(arg.name, s1, sizeof(arg.name));
 
 		expire = strtoul(s2, NULL, 10);
 		if (expire == 0 || errno == ERANGE) {