diff --git a/doc/contributing/building_ruby.md b/doc/contributing/building_ruby.md
index 423fcc7597..aefad73530 100644
--- a/doc/contributing/building_ruby.md
+++ b/doc/contributing/building_ruby.md
@@ -42,7 +42,7 @@
 
 1. Download ruby source code:
 
-    Select one of the bellow.
+    Select one of the below.
 
     1. Build from the tarball: