diff --git a/pkgs/shells/bash-completion/default.nix b/pkgs/shells/bash-completion/default.nix
index 7e4c0f230155..d79c9774569b 100644
--- a/pkgs/shells/bash-completion/default.nix
+++ b/pkgs/shells/bash-completion/default.nix
@@ -11,6 +11,11 @@ stdenv.mkDerivation {
     sha256 = "e5a490a4301dfb228361bdca2ffca597958e47dd6056005ef9393a5852af5804";
   };
 
+  postInstall = ''
+    sed -i "$out/share/bash-completion/bash_completion" \
+        -e 's|: .{BASH_COMPLETION_COMPAT_DIR:=.*}|BASH_COMPLETION_COMPAT_DIR="$HOME/.nix-profile/etc/bash_completion.d"|'
+  '';
+
   doCheck = true;
 
   meta = {