diff --git a/pkgs/development/tools/misc/kcachegrind/default.nix b/pkgs/development/tools/misc/kcachegrind/default.nix
index 962ac92bd31..0a6bc40de49 100644
--- a/pkgs/development/tools/misc/kcachegrind/default.nix
+++ b/pkgs/development/tools/misc/kcachegrind/default.nix
@@ -1,11 +1,16 @@
-{stdenv, fetchurl, kdelibs}:
+# todo: make libXext a propaged build input in kdelibs?
+
+{stdenv, fetchurl, kdelibs, libX11, libXext, qt, zlib, perl}:
 
 stdenv.mkDerivation {
   name = "kcachegrind-0.4.6";
+  builder = ./builder.sh;
+
   src = fetchurl {
     url = http://kcachegrind.sourceforge.net/kcachegrind-0.4.6.tar.gz;
     md5 = "4ed60028dcefd6bf626635d5f2f50273";
   };
 
-  buildInputs = [kdelibs];
+  inherit libX11 kdelibs;
+  buildInputs = [kdelibs libX11 libXext zlib perl qt];
 }
diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index bbb474bf84a..015ebe1d3e4 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -381,7 +381,9 @@ rec {
   };
 
   kcachegrind = (import ../development/tools/misc/kcachegrind) {
-    inherit fetchurl stdenv kdelibs;
+    inherit fetchurl stdenv kdelibs zlib perl;
+    inherit (xlibs) libX11 libXext;
+    qt = qt3;
   };
 
   texinfo = (import ../development/tools/misc/texinfo) {