diff --git a/pkgs/desktops/deepin/apps/deepin-system-monitor/default.nix b/pkgs/desktops/deepin/apps/deepin-system-monitor/default.nix
index 97ee4c8ba8f1..ab53a9709fb8 100644
--- a/pkgs/desktops/deepin/apps/deepin-system-monitor/default.nix
+++ b/pkgs/desktops/deepin/apps/deepin-system-monitor/default.nix
@@ -80,7 +80,11 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [ "-DVERSION=${version}" ];
 
-  env.NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+  # To build with icu4c need at least c++17
+  env.NIX_CFLAGS_COMPILE = toString [
+    "-Wno-error=incompatible-pointer-types"
+    "--std=c++17"
+  ];
 
   strictDeps = true;