doc: add missing word

maclover7 · MylesBorins · commit 1a4fd677e8ee · 2017-09-10T02:34:08.000+02:00
PR-URL: #14924 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/BUILDING.md b/BUILDING.md
@@ -134,7 +134,7 @@ This will build Node.js first (if necessary) and then use it to build the docs:
 $ make doc
 ```
 
-If you have an existing Node.js you can build just the docs with:
+If you have an existing Node.js build, you can build just the docs with:
 
 ```console
 $ NODE=/path/to/node make doc-only
