diff --git a/pkgs/data/icons/numix-icon-theme-circle/default.nix b/pkgs/data/icons/numix-icon-theme-circle/default.nix
index 5cab27d74f7b..5982074991fa 100644
--- a/pkgs/data/icons/numix-icon-theme-circle/default.nix
+++ b/pkgs/data/icons/numix-icon-theme-circle/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, numix-icon-theme }:
+{ stdenv, fetchFromGitHub, gtk3, numix-icon-theme }:
 
 stdenv.mkDerivation rec {
   version = "18-02-16";
@@ -14,15 +14,19 @@ stdenv.mkDerivation rec {
     sha256 = "0q08q1czsk6h0dxqscbgryr12xaakp4zbch37z0jxpwh087gnq4f";
   };
 
-  buildInputs = [ numix-icon-theme ];
-
-  dontBuild = true;
+  nativeBuildInputs = [ gtk3 numix-icon-theme ];
 
   installPhase = ''
     install -dm 755 $out/share/icons
     cp -dr --no-preserve='ownership' Numix-Circle{,-Light} $out/share/icons/
   '';
 
+  postFixup = ''
+    for theme in $out/share/icons/*; do
+      gtk-update-icon-cache $theme
+    done
+  '';
+
   meta = with stdenv.lib; {
     description = "Numix icon theme (circle version)";
     homepage = https://numixproject.org;