diff --git a/resources/schema/inventory.xsd b/resources/schema/inventory.xsd
index 17a7cdb..7c9b561 100644
--- a/resources/schema/inventory.xsd
+++ b/resources/schema/inventory.xsd
@@ -202,7 +202,7 @@
 
   <xsd:complexType name="corpusExampleType" mixed="true">
     <xsd:sequence>
-      <xsd:element name="comp" type="componentLexemeType" maxOccurs="unbounded"/>
+      <xsd:element name="comp" type="componentLexemeType" minOccurs="0" maxOccurs="unbounded"/>
     </xsd:sequence>
     <xsd:attribute name="example_id" type="xsd:int"/>
     <xsd:attribute name="modified" type="xsd:boolean"/>