diff --git a/docs/examples/fmi_ls_ref_manifest_example.xml b/docs/examples/fmi_ls_ref_manifest_example.xml
index db292e8..47fe98f 100644
--- a/docs/examples/fmi_ls_ref_manifest_example.xml
+++ b/docs/examples/fmi_ls_ref_manifest_example.xml
@@ -13,4 +13,5 @@
 	<Related type="application/x-ssp-parameter-set" source="highend-params.ssv" role="parameter" description="Highend Model Parameters"/>
 	<Related type="application/x-ssp-parameter-set" source="dynamic-params.ssv" role="parameter" description="Dynamic Model Parameters"/>
 	<Related type="application/x-ma-ls-experiments" source="smoke-tests.exp" role="experiment" description="Smoke Tests of FMU"/>
+	<Related type="application/x-srmd-meta-data" source="metadata/model.srmd" role="meta-data" description="SRMD Meta-Data"/>
 </fmiReferences>
diff --git a/docs/index.adoc b/docs/index.adoc
index b1566d9..7351faf 100644
--- a/docs/index.adoc
+++ b/docs/index.adoc
@@ -218,6 +218,9 @@ Only the following sub-roles are defined: `smoke-test`, `validation`, and `uncer
 When the serialized state file is not platform independent, then the platform should be indicated in a sub-role (e.g., `serialized-state/x86_64-windows` for FMI 3.0 64-bit x86 Windows platform).
 The identifier to use for the sub-role is the same as used in the respective FMI standard for platform identification.
 
+|`meta-data`
+| Meta-data file, e.g., an SRMD file or other meta-data file that provides meta-data about the FMU or its context.
+
 |`other`
 | Other related file, e.g., a file not covered by the other roles.
 |====
diff --git a/schema/fmi3LayeredStandardReferenceManifest.xsd b/schema/fmi3LayeredStandardReferenceManifest.xsd
index ee81e6f..49c6c25 100644
--- a/schema/fmi3LayeredStandardReferenceManifest.xsd
+++ b/schema/fmi3LayeredStandardReferenceManifest.xsd
@@ -71,7 +71,7 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
             </xs:annotation>
             <xs:simpleType>
                 <xs:restriction base="xs:string">
-                    <xs:pattern value="(document|requirement|specification|model|parameter|system|testcase|experiment(/(smoke-test|validation|uncertainty-analysis))?|result|method|rationale|report|request|delivery|configuration|signature|serialized-state(/.*)?|other)"/>
+                    <xs:pattern value="(document|requirement|specification|model|parameter|system|testcase|experiment(/(smoke-test|validation|uncertainty-analysis))?|result|method|rationale|report|request|delivery|configuration|signature|serialized-state(/.*)?|meta-data|other)"/>
                 </xs:restriction>
             </xs:simpleType>
         </xs:attribute>