diff --git a/.github/diy/patches/isp-split.patch b/.github/diy/patches/isp-split.patch
index 7c0bf622d..7d18527f4 100644
--- a/.github/diy/patches/isp-split.patch
+++ b/.github/diy/patches/isp-split.patch
@@ -1,11 +1,10 @@
 --- a/isp-split/Makefile
 +++ b/isp-split/Makefile
-@@ -19,7 +19,7 @@ define Package/isp-split
+@@ -25,7 +25,7 @@ define Package/isp-split
  #   Kwrt 源里 nft 版的包名是 mwan3-nft，与其他源命名不一致。
  #   nftables 版 mwan3 是硬性前提，由 install.sh 与 router-preflight 检查，
  #   并在 description 里说明。
--  DEPENDS:=+nftables +curl
-+  DEPENDS:=+nftables +curl +mwan3-nft
+-  DEPENDS:=+nftables +curl $(if $(filter 1,$(FEATURE_LINECHECK)),+socat)
++  DEPENDS:=+nftables +curl +mwan3-nft $(if $(filter 1,$(FEATURE_LINECHECK)),+socat)
    PKGARCH:=all
  endef
-