diff --git a/src/topics/crossposts.js b/src/topics/crossposts.js
index 26aec2bf8a..c02f24e934 100644
--- a/src/topics/crossposts.js
+++ b/src/topics/crossposts.js
@@ -27,6 +27,9 @@ Crossposts.get = async function (tid) {
 	crossposts = crossposts.map((crosspost, idx) => {
 		crosspost.id = crosspostIds[idx];
 		crosspost.category = categoriesData.get(parseInt(crosspost.cid, 10));
+		crosspost.uid = utils.isNumber(crosspost.uid) ? parseInt(crosspost.uid) : crosspost.uid;
+		crosspost.cid = utils.isNumber(crosspost.cid) ? parseInt(crosspost.cid) : crosspost.cid;
+
 		return crosspost;
 	});
 
diff --git a/test/topics/crossposts.js b/test/topics/crossposts.js
index ce3be1fbc5..5b5a4b0d67 100644
--- a/test/topics/crossposts.js
+++ b/test/topics/crossposts.js
@@ -396,9 +396,9 @@ describe('Crossposting (& related logic)', () => {
 				tid: actual.tid,
 				cid: actual.cid,
 			}, {
-				uid: '0',
+				uid: 0,
 				tid,
-				cid: String(cid),
+				cid: cid,
 			});
 		});
 	});
@@ -443,9 +443,9 @@ describe('Crossposting (& related logic)', () => {
 				tid: actual.tid,
 				cid: actual.cid,
 			}, {
-				uid: '0',
+				uid: 0,
 				tid,
-				cid: String(cid),
+				cid: cid,
 			});
 		});
 	});