diff --git a/pkgs/build-support/buildenv/builder.pl b/pkgs/build-support/buildenv/builder.pl
index ebd6026b2597..975e76df05c0 100755
--- a/pkgs/build-support/buildenv/builder.pl
+++ b/pkgs/build-support/buildenv/builder.pl
@@ -126,7 +126,7 @@ sub findFiles {
     return if
         $relName eq "/propagated-build-inputs" ||
         $relName eq "/nix-support" ||
-        $relName =~ /info\/dir/ ||
+        $relName =~ /info\/dir$/ ||
         ( $relName =~ /^\/share\/mime\// && !( $relName =~ /^\/share\/mime\/packages/ ) ) ||
         $baseName eq "perllocal.pod" ||
         $baseName eq "log" ||