4 files changed, 4 insertions, 4 deletions
diff --git a/pkgs/misc/cups/drivers/hll2390dw-cups/default.nix b/pkgs/misc/cups/drivers/hll2390dw-cups/default.nix
index 8357a452a2b..55b0deea971 100644
--- a/pkgs/misc/cups/drivers/hll2390dw-cups/default.nix
+++ b/pkgs/misc/cups/drivers/hll2390dw-cups/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ cups ghostscript dpkg a2ps ];
 
-  unpackPhase = "true";
+  dontUnpack = true;
 
   installPhase = ''
     dpkg-deb -x $src $out
diff --git a/pkgs/misc/cups/drivers/mfcj470dwlpr/default.nix b/pkgs/misc/cups/drivers/mfcj470dwlpr/default.nix
index f69c972c999..f31dd9061ec 100644
--- a/pkgs/misc/cups/drivers/mfcj470dwlpr/default.nix
+++ b/pkgs/misc/cups/drivers/mfcj470dwlpr/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ cups ghostscript dpkg a2ps ];
 
-  unpackPhase = "true";
+  dontUnpack = true;
 
   installPhase = ''
     dpkg-deb -x $src $out
diff --git a/pkgs/misc/cups/drivers/mfcj6510dwlpr/default.nix b/pkgs/misc/cups/drivers/mfcj6510dwlpr/default.nix
index e22a159c428..9d9535ce37b 100644
--- a/pkgs/misc/cups/drivers/mfcj6510dwlpr/default.nix
+++ b/pkgs/misc/cups/drivers/mfcj6510dwlpr/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ cups ghostscript dpkg a2ps ];
 
-  unpackPhase = "true";
+  dontUnpack = true;
 
   brprintconf_mfcj6510dw_script = ''
     #!${runtimeShell}
diff --git a/pkgs/misc/emulators/ccemux/default.nix b/pkgs/misc/emulators/ccemux/default.nix
index f3ec6421339..a560ecd0a21 100644
--- a/pkgs/misc/emulators/ccemux/default.nix
+++ b/pkgs/misc/emulators/ccemux/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
   name = "ccemux-${version}";
 
   src = jar;
-  unpackPhase = "true";
+  dontUnpack = true;
 
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ jre ];