1 files changed, 2 insertions, 6 deletions
diff --git a/pkgs/development/libraries/freetts/default.nix b/pkgs/development/libraries/freetts/default.nix
index 698a7f6a28ac..ec948f1fdccc 100644
--- a/pkgs/development/libraries/freetts/default.nix
+++ b/pkgs/development/libraries/freetts/default.nix
@@ -4,6 +4,7 @@
 , ant
 , jdk8
 , sharutils
+, stripJavaArchivesHook
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -20,16 +21,11 @@ stdenv.mkDerivation (finalAttrs: {
     ant
     jdk8
     sharutils
+    stripJavaArchivesHook
   ];
 
   sourceRoot = "${finalAttrs.src.name}/freetts-${finalAttrs.version}";
 
-  postPatch = ''
-    # Fix jar timestamps for reproducibility
-    substituteInPlace build.xml demo.xml \
-        --replace-fail '<jar ' '<jar modificationtime="0" '
-  '';
-
   buildPhase = ''
     runHook preBuild