diff --git a/pkgs/desktops/deepin/apps/deepin-camera/default.nix b/pkgs/desktops/deepin/apps/deepin-camera/default.nix
index 27556ed73e04..95e1c9eeb49f 100644
--- a/pkgs/desktops/deepin/apps/deepin-camera/default.nix
+++ b/pkgs/desktops/deepin/apps/deepin-camera/default.nix
@@ -70,7 +70,7 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [ "-DVERSION=${version}" ];
 
-  NIX_CFLAGS_COMPILE = [
+  env.NIX_CFLAGS_COMPILE = toString [
     "-I${gst_all_1.gstreamer.dev}/include/gstreamer-1.0"
     "-I${gst_all_1.gst-plugins-base.dev}/include/gstreamer-1.0"
   ];