diff --git a/examples/empty.xml b/examples/empty.xml
new file mode 100644
index 0000000..94d9660
--- /dev/null
+++ b/examples/empty.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<export xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://swissrets.ch/dist/v2.0.0/schema.xsd">
+  <properties />
+</export>
diff --git a/schema/schema.xsd b/schema/schema.xsd
index 0acc810..c46888e 100644
--- a/schema/schema.xsd
+++ b/schema/schema.xsd
@@ -1201,7 +1201,7 @@
           </xs:annotation>
           <xs:complexType>
             <xs:sequence>
-              <xs:element name="property" maxOccurs="unbounded" minOccurs="1">
+              <xs:element name="property" maxOccurs="unbounded" minOccurs="0">
                 <xs:annotation>
                   <xs:documentation>Property container for buildings, houses, flats and all other possible objects.</xs:documentation>
                 </xs:annotation>