diff --git a/pkgs/development/tools/selenium/chromedriver/default.nix b/pkgs/development/tools/selenium/chromedriver/default.nix
index b349b389997..8912f52ba60 100644
--- a/pkgs/development/tools/selenium/chromedriver/default.nix
+++ b/pkgs/development/tools/selenium/chromedriver/default.nix
@@ -22,6 +22,14 @@ let
 
   spec = allSpecs."${stdenv.system}"
     or (throw "missing chromedriver binary for ${stdenv.system}");
+
+  libs = stdenv.lib.makeLibraryPath [
+    stdenv.cc.cc.lib
+    cairo fontconfig freetype
+    gdk_pixbuf glib gtk2 gconf
+    libX11 nspr nss pango libXrender
+    gconf libXext libXi
+  ];
 in
 stdenv.mkDerivation rec {
   name = "chromedriver-${version}";
@@ -36,14 +44,6 @@ stdenv.mkDerivation rec {
 
   unpackPhase = "unzip $src";
 
-  libs = stdenv.lib.makeLibraryPath [
-    stdenv.cc.cc.lib
-    cairo fontconfig freetype
-    gdk_pixbuf glib gtk2 gconf
-    libX11 nspr nss pango libXrender
-    gconf libXext libXi
-  ];
-
   installPhase = ''
     install -m755 -D chromedriver $out/bin/chromedriver
   '' + stdenv.lib.optionalString (!stdenv.isDarwin) ''