diff --git a/resources/schema/inventory.xsd b/resources/schema/inventory.xsd
index 7a408cc..8e45128 100644
--- a/resources/schema/inventory.xsd
+++ b/resources/schema/inventory.xsd
@@ -137,6 +137,7 @@
     <xsd:simpleContent>
       <xsd:extension base="xsd:decimal">
         <xsd:attribute name="type" type="xsd:string" use="required"/> <!-- type of measure (e.g., frequency, logDice); hmm, probably should be enumerated -->
+        <xsd:attribute name="corpus_id" type="xsd:int"/>
         <xsd:attribute name="source" type="xsd:string"/> <!-- context of the measure, probably corpus name and version -->
       </xsd:extension>
     </xsd:simpleContent>
@@ -276,7 +277,7 @@
       </xsd:choice>
     </xsd:sequence>
     <xsd:attribute name="corpus_id" type="xsd:int"/>
-    <xsd:attribute name="source" type="xsd:string"/>
+    <xsd:attribute name="corpusName" type="xsd:string"/>
     <xsd:attribute name="example_id" type="xsd:int"/>
     <xsd:attribute name="exampleId" type="xsd:string"/> <!-- the example's ID within the corpus itself --> 
     <xsd:attribute name="modified" type="xsd:boolean"/> <!-- is the example text different than in the corpus? -->