diff --git a/bin/npm-get-uid-gid.js b/bin/npm-get-uid-gid.js
index 390e0f2f..cebddb97 100755
--- a/bin/npm-get-uid-gid.js
+++ b/bin/npm-get-uid-gid.js
@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 var argv = process.argv.slice(2)
   , user = argv[0] || process.getuid()
   , group = argv[1] || process.getgid()
diff --git a/bin/read-package-json.js b/bin/read-package-json.js
index 8c95d86e..a7418df2 100755
--- a/bin/read-package-json.js
+++ b/bin/read-package-json.js
@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 var argv = process.argv
 if (argv.length < 3) {
   console.error("Usage: read-package.json <file> [<fields> ...]")
diff --git a/lib/utils/completion.sh b/lib/utils/completion.sh
old mode 100644
new mode 100755