diff --git a/lib/node-gyp.js b/lib/node-gyp.js
index <HASH>..<HASH> 100644
--- a/lib/node-gyp.js
+++ b/lib/node-gyp.js
@@ -83,6 +83,7 @@ proto.configDefs = {
   , proxy: String     // 'install'
   , nodedir: String   // 'configure'
   , loglevel: String  // everywhere
+  , python: String    // 'configure'
 }
 
 /**
configure: add "python" to the nopt config definition

Makes "node-gyp rebuild --python /usr/bin/python<I>`
(with " " instead of "=") work properly. Fixes #<I>.