1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/tools/text/popfile/default.nix b/pkgs/tools/text/popfile/default.nix
index 37ad72813f6..42befa2ce26 100644
--- a/pkgs/tools/text/popfile/default.nix
+++ b/pkgs/tools/text/popfile/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
       wrapProgram "$path" \
         --prefix PERL5LIB : $PERL5LIB:$out/bin \
         --set POPFILE_ROOT $out/bin \
-        --set-eval POPFILE_USER '$''\{POPFILE_USER:-$HOME/.popfile}' \
+        --run 'export POPFILE_USER=''${POPFILE_USER:-$HOME/.popfile}' \
         --run 'test -d "$POPFILE_USER" || mkdir -m 0700 -p "$POPFILE_USER"'
     done
   '';