diff --git a/examples/full.xml b/examples/full.xml
index 33616bc..402395d 100644
--- a/examples/full.xml
+++ b/examples/full.xml
@@ -242,6 +242,10 @@
         <buy referring="all">
           <price>850000</price>
           <extra>25000</extra>
+          <priceRange>
+            <min>750000</min>
+            <max>950000</max>
+          </priceRange>
           <wirPercentage>5</wirPercentage>
         </buy>
         <auction start="2012-12-13T12:12:12" expiration="2012-12-13T12:12:13">745</auction>
diff --git a/schema/schema.xsd b/schema/schema.xsd
index 80695a3..896a56b 100644
--- a/schema/schema.xsd
+++ b/schema/schema.xsd
@@ -713,6 +713,17 @@
           <xs:all>
             <xs:element minOccurs="1" maxOccurs="1" name="price" type="xs:positiveInteger" />
             <xs:element minOccurs="0" maxOccurs="1" name="extra" type="xs:positiveInteger" />
+            <xs:element name="priceRange" minOccurs="0" maxOccurs="1">
+              <xs:annotation>
+                <xs:documentation>Optional price range to describe a more flexible pricing model for purchase</xs:documentation>
+              </xs:annotation>
+              <xs:complexType>
+                <xs:sequence>
+                  <xs:element minOccurs="1" maxOccurs="1" name="min" type="xs:positiveInteger" />
+                  <xs:element minOccurs="1" maxOccurs="1" name="max" type="xs:positiveInteger" />
+                </xs:sequence>
+              </xs:complexType>
+            </xs:element>
             <xs:element name="wirPercentage" type="percent" minOccurs="0" maxOccurs="1">
               <xs:annotation>
                 <xs:documentation>The percententage of the gross price which has to paid in WIR Franc electronic currency.</xs:documentation>