diff --git a/pkgs/development/libraries/xapian/default.nix b/pkgs/development/libraries/xapian/default.nix
index 700fa1d13dd1..3c0a555dd978 100644
--- a/pkgs/development/libraries/xapian/default.nix
+++ b/pkgs/development/libraries/xapian/default.nix
@@ -26,7 +26,7 @@ let
     nativeBuildInputs = [ autoreconfHook ];
 
     doCheck = true;
-    AUTOMATED_TESTING = true; # https://trac.xapian.org/changeset/8be35f5e1/git
+    env.AUTOMATED_TESTING = true; # https://trac.xapian.org/changeset/8be35f5e1/git
 
     patches = lib.optionals stdenv.isDarwin [ ./skip-flaky-darwin-test.patch ];
 
diff --git a/pkgs/servers/monitoring/munin/default.nix b/pkgs/servers/monitoring/munin/default.nix
index 0bfc868167cb..2016bbe9ed3b 100644
--- a/pkgs/servers/monitoring/munin/default.nix
+++ b/pkgs/servers/monitoring/munin/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation rec {
   ];
 
   # needs to find a local perl module during build
-  PERL_USE_UNSAFE_INC = "1";
+  env.PERL_USE_UNSAFE_INC = "1";
 
   # TODO: tests are failing https://munin-monitoring.org/ticket/1390#comment:1
   # NOTE: important, test command always exits with 0, think of a way to abort the build once tests pass
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index e0cecf43d264..63d31a6cf57f 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -23029,7 +23029,7 @@ let
 
     # For some crazy reason Makefile.PL doesn't generate a Makefile if
     # AUTOMATED_TESTING is set.
-    AUTOMATED_TESTING = false;
+    env.AUTOMATED_TESTING = false;
 
     # Makefile.PL looks for ncurses in Glibc's prefix.
     preConfigure =
@@ -27058,7 +27058,7 @@ let
         hash = "sha256-gxxY8549/ebS3QORjSs8IgdBs2aD05Tu+9Bn70gu7gQ=";
       })
     ];
-    AUTOMATED_TESTING = false;
+    env.AUTOMATED_TESTING = false;
     nativeBuildInputs = [ pkgs.pkg-config ];
     buildInputs = [ pkgs.xorg.libxcb pkgs.xorg.xcbproto pkgs.xorg.xcbutil pkgs.xorg.xcbutilwm ExtUtilsDepends ExtUtilsPkgConfig TestDeep TestException XSObjectMagic ];
     propagatedBuildInputs = [ DataDump MouseXNativeTraits XMLDescent XMLSimple ];