diff --git a/pkgs/applications/networking/instant-messengers/sflphone/default.nix b/pkgs/applications/networking/instant-messengers/sflphone/default.nix
deleted file mode 100644
index 10f63369a9b0..000000000000
--- a/pkgs/applications/networking/instant-messengers/sflphone/default.nix
+++ /dev/null
@@ -1,86 +0,0 @@
-{ stdenv, fetchurl, libyaml, alsaLib, openssl, libuuid, pkgconfig, libpulseaudio, libsamplerate
-, commoncpp2, ccrtp, libzrtpcpp, dbus, dbus_cplusplus, expat, pcre, gsm, speex, ilbc, libopus
-, autoconf, automake, libtool, gettext, perl
-, cmake, qt4
-, gtk, glib, dbus_glib, libnotify, intltool, makeWrapper }:
-
-let
-  name = "sflphone-1.2.3";
-
-  src = fetchurl {
-    url = "https://projects.savoirfairelinux.com/attachments/download/6423/${name}.tar.gz";
-    sha256 = "0aiwlky7mp5l51a7kkhkmaz7ivapypar291kdxzdxl1s3qy0x6fd";
-  };
-
-  meta = {
-    homepage = http://sflphone.org/;
-    license = stdenv.lib.licenses.gpl3Plus;
-    description = "Free software enterprise-class softphone for GNU/Linux";
-    platforms = with stdenv.lib.platforms; linux;
-    maintainers = with stdenv.lib.maintainers; [viric];
-  };
-
-in
-rec {
-  daemon = stdenv.mkDerivation {
-    name = name + "-daemon";
-
-    inherit src;
-
-    patches = [ ./libzrtpcpp-cflags.patch ];
-
-    preConfigure = ''
-      cd daemon
-
-      # Post patch, required
-      autoreconf -vfi
-
-      cd libs
-      bash ./compile_pjsip.sh
-      cd ..
-    '';
-
-    configureFlags = "--with-expat --with-expat-inc=${expat.dev}/include " +
-      "--with-expat-lib=-lexpat --with-opus ";
-
-    buildInputs = [ libyaml alsaLib openssl libuuid pkgconfig libpulseaudio libsamplerate
-      commoncpp2 ccrtp libzrtpcpp dbus dbus_cplusplus expat pcre gsm speex ilbc libopus
-      autoconf automake libtool gettext perl ];
-  };
-
-  # This fails still.
-  # I don't know the best way to make this a KDE program (with switchable kde
-  # libs, like digikam for example)
-  /*
-  kde = stdenv.mkDerivation {
-    name = name + "-kde";
-
-    inherit src;
-
-    preConfigure = ''
-      cd kde
-    '';
-
-    buildInputs = [ daemon cmake qt4 pkgconfig ];
-  };
-  */
-
-  gnome = stdenv.mkDerivation {
-    name = name + "-gnome";
-
-    inherit src;
-
-    preConfigure = ''
-      cd gnome
-    '';
-
-    # gtk3 programs have the runtime dependency on XDG_DATA_DIRS
-    preFixup = ''
-      for f in "$out/bin/sflphone" "$out/bin/sflphone-client-gnome"; do
-        wrapProgram $f --prefix XDG_DATA_DIRS ":" "${gtk.out}/share:$GSETTINGS_SCHEMAS_PATH"
-      done
-    '';
-
-    buildInputs = [ daemon pkgconfig gtk glib dbus_glib libnotify intltool makeWrapper ];
-  };
-}
diff --git a/pkgs/applications/networking/instant-messengers/sflphone/libzrtpcpp-cflags.patch b/pkgs/applications/networking/instant-messengers/sflphone/libzrtpcpp-cflags.patch
deleted file mode 100644
index 972d9c588082..000000000000
--- a/pkgs/applications/networking/instant-messengers/sflphone/libzrtpcpp-cflags.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-diff --git a/daemon/src/audio/audiortp/Makefile.am b/daemon/src/audio/audiortp/Makefile.am
-index c27eedd..fe64077 100644
---- a/daemon/src/audio/audiortp/Makefile.am
-+++ b/daemon/src/audio/audiortp/Makefile.am
-@@ -4,6 +4,10 @@ noinst_LTLIBRARIES = libaudiortp.la
- 
- if BUILD_ZRTP
- SFL_ZRTP_SRC=audio_zrtp_session.h audio_zrtp_session.cpp zrtp_session_callback.cpp zrtp_session_callback.h
-+libaudiortp_la_CXXFLAGS = \
-+		@CCGNU2_CFLAGS@ \
-+		@ZRTPCPP_CFLAGS@ \
-+		@CCRTP_CFLAGS@
- endif
- 
- libaudiortp_la_SOURCES = \
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f312219225b0..135f8c18d103 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -14939,10 +14939,6 @@ with pkgs;
 
   setbfree = callPackage ../applications/audio/setbfree { };
 
-  sflphone = callPackage ../applications/networking/instant-messengers/sflphone {
-    gtk = gtk3;
-  };
-
   shfmt = callPackage ../tools/text/shfmt { };
 
   shutter = callPackage ../applications/graphics/shutter { };