diff --git a/reference/mongo/configure.xml b/reference/mongo/configure.xml
index dccecc3ee1..f5f5e5d79c 100644
--- a/reference/mongo/configure.xml
+++ b/reference/mongo/configure.xml
@@ -76,7 +76,7 @@ Installing '/usr/lib/php/extensions/no-debug-non-zts-20060613/mongo.so'
 ]]>
      </programlisting>
 
-      Make sure that it is the same as the PHP extension directory by runnning:
+      Make sure that it is the same as the PHP extension directory by running:
 
      <programlisting role="shell">
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