diff --git a/pkgs/top-level/make-tarball.nix b/pkgs/top-level/make-tarball.nix
index 2fe69390ec5b..88f027157968 100644
--- a/pkgs/top-level/make-tarball.nix
+++ b/pkgs/top-level/make-tarball.nix
@@ -66,7 +66,7 @@ releaseTools.sourceTarball rec {
     for platform in i686-linux x86_64-linux x86_64-darwin; do
         header "checking Nixpkgs on $platform"
 
-        NIXPKGS_ALLOW_BROKEN=1 nix-env -f . \
+        nix-env -f . \
             --show-trace --argstr system "$platform" \
             -qa --drv-path --system-filter \* --system 2>&1 >/dev/null | tee eval-warnings.log
 
@@ -76,7 +76,7 @@ releaseTools.sourceTarball rec {
         fi
         rm eval-warnings.log
 
-        NIXPKGS_ALLOW_BROKEN=1 nix-env -f . \
+        nix-env -f . \
             --show-trace --argstr system "$platform" \
             -qa --drv-path --system-filter \* --system --meta --xml > /dev/null
         stopNest