1 files changed, 8 insertions, 0 deletions
diff --git a/src/data/validators.js b/src/data/validators.js
index c0e41c9..0d325ae 100644
--- a/src/data/validators.js
+++ b/src/data/validators.js
@@ -235,6 +235,14 @@ export const isContribution = validateProperties({
 
 export const isContributionList = validateArrayItems(isContribution);
 
+export const isAdditionalFile = validateProperties({
+    title: isString,
+    description: value => (value === undefined || value === null || isString(value)),
+    files: validateArrayItems(isString)
+});
+
+export const isAdditionalFileList = validateArrayItems(isAdditionalFile);
+
 export function isDimensions(dimensions) {
     isArray(dimensions);