diff --git a/src/consts.zig b/src/consts.zig
index e6680c9..0b588dd 100644
--- a/src/consts.zig
+++ b/src/consts.zig
@@ -1,5 +1,5 @@
 pub const ENV_KEY_OLD_HOSTS_PATH = "OLD_HOSTS_PATH";
-pub const ENV_KEY_TMP_HOSTS_PATH = "TMP_HOSTS_PATH";
+pub const TMP_HOSTS_FILE = "tmp_hosts";
 pub const ENV_KEY_TARGET_DOMAIN = "TARGET_DOMAIN";
 pub const ENV_KEY_SUBDOMAIN_LIST = "SUBDOMAIN_LIST";
 
diff --git a/src/hosts.zig b/src/hosts.zig
index 99a4211..ba3d422 100644
--- a/src/hosts.zig
+++ b/src/hosts.zig
@@ -108,7 +108,7 @@ fn get_subdomains() !std.mem.SplitIterator(u8, .scalar) {
 fn create_tmp_hosts(ip: util.IP, domain: util.Domain) !void {
     var old_hosts = try std.fs.Dir.openFileZ(util.cwd, try util.getenv(util.consts.ENV_KEY_OLD_HOSTS_PATH), .{ .mode = .read_only });
     defer old_hosts.close();
-    var tmp_hosts = try std.fs.Dir.createFileZ(util.cwd, try util.getenv(util.consts.ENV_KEY_TMP_HOSTS_PATH), .{ .truncate = true });
+    var tmp_hosts = try std.fs.Dir.createFileZ(util.cwd, util.consts.TMP_HOSTS_FILE, .{ .truncate = true });
     defer tmp_hosts.close();
 
     try purge_existing(old_hosts, tmp_hosts);
@@ -119,7 +119,7 @@ fn move_tmp_hosts() !void {
     var target_hosts = try std.fs.Dir.createFileZ(util.cwd, try util.getenv(util.consts.ENV_KEY_OLD_HOSTS_PATH), .{ .lock = .exclusive });
     defer target_hosts.close();
     const target_writer = target_hosts.writer();
-    var tmp_hosts = try std.fs.Dir.openFileZ(util.cwd, try util.getenv(util.consts.ENV_KEY_TMP_HOSTS_PATH), .{});
+    var tmp_hosts = try std.fs.Dir.openFileZ(util.cwd, util.consts.TMP_HOSTS_FILE, .{});
     defer tmp_hosts.close();
     const source_reader = tmp_hosts.reader();
 
@@ -129,5 +129,5 @@ fn move_tmp_hosts() !void {
         }
     };
 
-    try std.fs.Dir.deleteFileZ(util.cwd, try util.getenv(util.consts.ENV_KEY_TMP_HOSTS_PATH));
+    try std.fs.Dir.deleteFileZ(util.cwd, util.consts.TMP_HOSTS_FILE);
 }