diff --git a/pkgs/development/libraries/liboauth/default.nix b/pkgs/development/libraries/liboauth/default.nix
index 855d921206e9..ddea4eb61f7a 100644
--- a/pkgs/development/libraries/liboauth/default.nix
+++ b/pkgs/development/libraries/liboauth/default.nix
@@ -10,11 +10,12 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ pkgconfig ];
-
   propagatedBuildInputs = [ nss nspr ];
 
   configureFlags = [ "--enable-nss" ];
 
+  NIX_CFLAGS_COMPILE = [ "-I${nss.dev}/include/nss" ];
+
   postInstall = ''
     substituteInPlace $out/lib/liboauth.la \
       --replace "-lnss3" "-L${nss.out}/lib -lnss3"
@@ -26,5 +27,4 @@ stdenv.mkDerivation rec {
     homepage = http://liboauth.sourceforge.net/;
     repositories.git = https://github.com/x42/liboauth.git;
   };
-
 }