diff --git a/pkgs/development/web/nodejs/nodejs.nix b/pkgs/development/web/nodejs/nodejs.nix
index 53d24a81aec1..ab9a8b95d1a0 100644
--- a/pkgs/development/web/nodejs/nodejs.nix
+++ b/pkgs/development/web/nodejs/nodejs.nix
@@ -136,7 +136,7 @@ let
 
       ${optionalString (enableNpm && stdenv.hostPlatform == stdenv.buildPlatform) ''
         mkdir -p $out/share/bash-completion/completions/
-        $out/bin/npm completion > $out/share/bash-completion/completions/npm || :
+        HOME=$TMPDIR $out/bin/npm completion > $out/share/bash-completion/completions/npm
         for dir in "$out/lib/node_modules/npm/man/"*; do
           mkdir -p $out/share/man/$(basename "$dir")
           for page in "$dir"/*; do