diff --git a/i18n/ante/en.json b/i18n/ante/en.json
index bc4276ba..4839c7d0 100644
--- a/i18n/ante/en.json
+++ b/i18n/ante/en.json
@@ -112,9 +112,9 @@
     "deputy.ante.splitArticle.from_oldid.help": "The revision ID of the original page prior to the split. This is the revision that still contains content that will eventually become part of the split, with the following revision (or succeeding revisions) progressively transferring content to the other pages.",
     "deputy.ante.splitArticle.date.label": "Date of split",
     "deputy.ante.splitArticle.date.help": "The date that the split occurred.",
-    "deputy.ante.splitArticle.diff.placeholder": "https://en.wikipedia.org/w/index.php?diff=123456&oldid=123455",
-    "deputy.ante.splitArticle.diff.label": "Diff URL",
-    "deputy.ante.splitArticle.diff.help": "The diff URL of the split.",
+    "deputy.ante.splitArticle.diff.placeholder": "123456789",
+    "deputy.ante.splitArticle.diff.label": "Diff",
+    "deputy.ante.splitArticle.diff.help": "The diff URL or revision ID of the split.",
 
     "deputy.ante.mergedFrom.label": "Merged from $1",
     "deputy.ante.mergedFrom.remove": "Remove notice",
diff --git a/src/modules/ante/ui/pages/SplitArticleTemplateRowPage.tsx b/src/modules/ante/ui/pages/SplitArticleTemplateRowPage.tsx
index d539a0ff..a83568a4 100644
--- a/src/modules/ante/ui/pages/SplitArticleTemplateRowPage.tsx
+++ b/src/modules/ante/ui/pages/SplitArticleTemplateRowPage.tsx
@@ -174,7 +174,12 @@ function initSplitArticleTemplateRowPage() {
 					value: this.splitArticleTemplateRow.from_oldid || '',
 					placeholder: mw.message( 'deputy.ante.splitArticle.diff.placeholder' ).text(),
 					validate: ( value: string ) => {
-						if ( value.trim().length === 0 ) {
+						if (
+							// Blank
+							value.trim().length === 0 ||
+							// Diff number
+							!isNaN( +value )
+						) {
 							return true;
 						}
 						try {