1 files changed, 2 insertions, 1 deletions
diff --git a/pkgs/servers/sip/freeswitch/default.nix b/pkgs/servers/sip/freeswitch/default.nix
index 9f7e2b297ee..9a1ea5b5580 100644
--- a/pkgs/servers/sip/freeswitch/default.nix
+++ b/pkgs/servers/sip/freeswitch/default.nix
@@ -15,8 +15,9 @@ stdenv.mkDerivation rec {
       --replace AS=\''${AS} AS=yasm
   '';
 
+  nativeBuildInputs = [ pkgconfig ];
   buildInputs = [
-    openssl ncurses curl pkgconfig gnutls readline perl libjpeg
+    openssl ncurses curl gnutls readline perl libjpeg
     sqlite pcre speex ldns libedit yasm which lua libopus
     libsndfile
   ];