diff --git a/pkgs/stdenv/generic/make-derivation.nix b/pkgs/stdenv/generic/make-derivation.nix
index 0515494ec982..70e5d4a7e945 100644
--- a/pkgs/stdenv/generic/make-derivation.nix
+++ b/pkgs/stdenv/generic/make-derivation.nix
@@ -545,7 +545,13 @@ lib.extendDerivation
        # binaries). By writing this to $out, Nix can find and register
        # them as runtime dependencies (since Nix greps for store paths
        # through $out to find them)
-       args = [ "-c" "export > $out" ];
+       args = [ "-c" ''
+         export > $out
+         for var in $passAsFile; do
+             pathVar="''${var}Path"
+             printf "%s" "$(< "''${!pathVar}")" >> $out
+         done
+       '' ];
 
        # inputDerivation produces the inputs; not the outputs, so any
        # restrictions on what used to be the outputs don't serve a purpose