diff --git a/jsonschema-validation.xml b/jsonschema-validation.xml
index 564dcd5f..7e24ed20 100644
--- a/jsonschema-validation.xml
+++ b/jsonschema-validation.xml
@@ -552,7 +552,7 @@
                     an array, elements of the array MUST be strings and MUST be unique.
                 </t>
                 <t>
-                    String values MUST be one of the seven primitive types defined by
+                    String values MUST be one of the six primitive types defined by
                     the core specification.
                 </t>
                 <t>