diff --git a/reference/strings/functions/strspn.xml b/reference/strings/functions/strspn.xml
index d264978558..f24b9a3519 100644
--- a/reference/strings/functions/strspn.xml
+++ b/reference/strings/functions/strspn.xml
@@ -108,7 +108,7 @@ $var = strspn("42 is the answer to the 128th question.", "1234567890");
        position.
       </para>
       <para>
-        If <parameter>length</parameter>is given and is negative,
+        If <parameter>length</parameter> is given and is negative,
         then <parameter>subject</parameter> will be examined from the
         starting position up to <parameter>length</parameter>
         characters from the end of <parameter>subject</parameter>.