diff --git a/pkgs/os-specific/bsd/netbsd/default.nix b/pkgs/os-specific/bsd/netbsd/default.nix
index 46bac37f4e82..7f8a623b20d0 100644
--- a/pkgs/os-specific/bsd/netbsd/default.nix
+++ b/pkgs/os-specific/bsd/netbsd/default.nix
@@ -51,7 +51,7 @@ let
 
     AR = "${stdenv'.cc.targetPrefix or ""}ar";
     CC = "${stdenv'.cc.targetPrefix or ""}cc";
-    CPP = if (stdenv'.cc.isClang or false) then "clang-cpp" else "cpp";
+    CPP = "${stdenv'.cc.targetPrefix or ""}cpp";
     CXX = "${stdenv'.cc.targetPrefix or ""}c++";
     LD = "${stdenv'.cc.targetPrefix or ""}ld";
     STRIP = "${stdenv'.cc.targetPrefix or ""}strip";