3 files changed, 3 insertions, 3 deletions
diff --git a/nixpkgs/pkgs/development/tools/parsing/antlr/3.4.nix b/nixpkgs/pkgs/development/tools/parsing/antlr/3.4.nix
index ad0ebbdebba0..b53116b888e1 100644
--- a/nixpkgs/pkgs/development/tools/parsing/antlr/3.4.nix
+++ b/nixpkgs/pkgs/development/tools/parsing/antlr/3.4.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "1xqbam8vf04q5fasb0m2n1pn5dbp2yw763sj492ncq04c5mqcglx";
   };
 
-  unpackPhase = "true";
+  dontUnpack = true;
 
   installPhase = ''
     mkdir -p "$out"/{lib/antlr,bin}
diff --git a/nixpkgs/pkgs/development/tools/parsing/antlr/3.5.nix b/nixpkgs/pkgs/development/tools/parsing/antlr/3.5.nix
index cf37287beff8..4c213ed1c4c2 100644
--- a/nixpkgs/pkgs/development/tools/parsing/antlr/3.5.nix
+++ b/nixpkgs/pkgs/development/tools/parsing/antlr/3.5.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "0srjwxipwsfzmpi0v32d1l5lzk9gi5in8ayg33sq8wyp8ygnbji6";
   };
 
-  unpackPhase = "true";
+  dontUnpack = true;
 
   installPhase = ''
     mkdir -p "$out"/{lib/antlr,bin}
diff --git a/nixpkgs/pkgs/development/tools/parsing/antlr/4.7.nix b/nixpkgs/pkgs/development/tools/parsing/antlr/4.7.nix
index 40f9bf74ac40..e6e54f8dab92 100644
--- a/nixpkgs/pkgs/development/tools/parsing/antlr/4.7.nix
+++ b/nixpkgs/pkgs/development/tools/parsing/antlr/4.7.nix
@@ -41,7 +41,7 @@ let
       sha256 = "1236gwnzchama92apb2swmklnypj01m7bdwwfvwvl8ym85scw7gl";
     };
 
-    unpackPhase = "true";
+    dontUnpack = true;
 
     installPhase = ''
       mkdir -p "$out"/{share/java,bin}