diff --git a/v2/sarif/message_strings.go b/v2/sarif/message_strings.go
new file mode 100644
index 0000000..42f56f1
--- /dev/null
+++ b/v2/sarif/message_strings.go
@@ -0,0 +1,3 @@
+package sarif
+
+type MessageStrings map[string]MultiformatMessageString
diff --git a/v2/sarif/reporting_descriptor.go b/v2/sarif/reporting_descriptor.go
index ba9445d..5094f48 100644
--- a/v2/sarif/reporting_descriptor.go
+++ b/v2/sarif/reporting_descriptor.go
@@ -10,6 +10,7 @@ type ReportingDescriptor struct {
 	DefaultConfiguration *ReportingConfiguration   `json:"defaultConfiguration,omitempty"`
 	HelpURI              *string                   `json:"helpUri,omitempty"`
 	Help                 *MultiformatMessageString `json:"help,omitempty"`
+	MessageStrings       *MessageStrings           `json:"messageStrings"`
 	Properties           Properties                `json:"properties,omitempty"`
 }