diff --git a/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-1.xml b/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-1.xml
index 633c522c6..89ddddbd5 100644
--- a/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-1.xml
+++ b/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-1.xml
@@ -152,10 +152,10 @@
         </rule>
         <rule object="PDDocument" tags="metadata">
             <id specification="ISO_14289_1" clause="7.1" testNumber="8"/>
-            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-1:2008, 14.3.2</description>
+            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-1:2008, 14.3.2. The metadata stream dictionary shall contain entry Type with value /Metadata and entry Subtype with value /XML</description>
             <test>metadata_size == 1</test>
             <error>
-                <message>The document catalog dictionary doesn't contain metadata key</message>
+                <message>The document catalog dictionary doesn't contain metadata key or metadata stream dictionary does not contain either entry Type with value /Metadata or entry Subtype with value /XML</message>
                 <arguments/>
             </error>
             <references>
diff --git a/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-2-ISO32005.xml b/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-2-ISO32005.xml
index fce695902..1b90e7a8d 100644
--- a/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-2-ISO32005.xml
+++ b/core/src/main/resources/org/verapdf/pdfa/validation/PDFUA-2-ISO32005.xml
@@ -1092,10 +1092,10 @@
         </rule>
         <rule object="PDDocument" tags="metadata">
             <id specification="ISO_14289_2" clause="8.11.1" testNumber="2"/>
-            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-2:2020, 14.3</description>
+            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-2:2020, 14.3. The metadata stream dictionary shall contain entry Type with value /Metadata and entry Subtype with value /XML</description>
             <test>metadata_size == 1</test>
             <error>
-                <message>The document catalog dictionary doesn't contain metadata key</message>
+                <message>The document catalog dictionary doesn't contain metadata key or metadata stream dictionary does not contain either entry Type with value /Metadata or entry Subtype with value /XML</message>
                 <arguments/>
             </error>
             <references>
diff --git a/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Accessibility.xml b/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Accessibility.xml
index 597a34bbf..ab1c898e6 100644
--- a/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Accessibility.xml
+++ b/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Accessibility.xml
@@ -1044,10 +1044,10 @@
         </rule>
         <rule object="PDDocument" tags="metadata">
             <id specification="WTPDF_1_0" clause="8.11.1" testNumber="2"/>
-            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-2:2020, 14.3</description>
+            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-2:2020, 14.3. The metadata stream dictionary shall contain entry Type with value /Metadata and entry Subtype with value /XML</description>
             <test>metadata_size == 1</test>
             <error>
-                <message>The document catalog dictionary doesn't contain metadata key</message>
+                <message>The document catalog dictionary doesn't contain metadata key or metadata stream dictionary does not contain either entry Type with value /Metadata or entry Subtype with value /XML</message>
                 <arguments/>
             </error>
             <references>
diff --git a/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Reuse.xml b/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Reuse.xml
index 064376fdf..ae28e9e09 100644
--- a/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Reuse.xml
+++ b/core/src/main/resources/org/verapdf/pdfa/validation/WTPDF-1-0-Reuse.xml
@@ -908,10 +908,10 @@
         </rule>
         <rule object="PDDocument" tags="metadata">
             <id specification="WTPDF_1_0" clause="8.11.1" testNumber="2"/>
-            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-2:2020, 14.3</description>
+            <description>The Catalog dictionary of a conforming file shall contain the Metadata key whose value is a metadata stream as defined in ISO 32000-2:2020, 14.3. The metadata stream dictionary shall contain entry Type with value /Metadata and entry Subtype with value /XML</description>
             <test>metadata_size == 1</test>
             <error>
-                <message>The document catalog dictionary doesn't contain metadata key</message>
+                <message>The document catalog dictionary doesn't contain metadata key or metadata stream dictionary does not contain either entry Type with value /Metadata or entry Subtype with value /XML</message>
                 <arguments/>
             </error>
             <references>