diff --git a/src/controllers/category.js b/src/controllers/category.js
index f4b939f60a..e3adde496f 100644
--- a/src/controllers/category.js
+++ b/src/controllers/category.js
@@ -51,7 +51,7 @@ categoryController.get = function(req, res, callback) {
 				return helpers.notAllowed(req, res);
 			}
 
-			if ((!req.params.slug || results.categoryData.slug !== cid + '/' + req.params.slug) && (results.categoryData.slug && results.categoryData.slug !== cid + '/')) {
+			if (!res.locals.isAPI && (!req.params.slug || results.categoryData.slug !== cid + '/' + req.params.slug) && (results.categoryData.slug && results.categoryData.slug !== cid + '/')) {
 				return helpers.redirect(res, '/category/' + encodeURI(results.categoryData.slug));
 			}
 
diff --git a/src/controllers/topics.js b/src/controllers/topics.js
index 7a222dd09c..68a3b18415 100644
--- a/src/controllers/topics.js
+++ b/src/controllers/topics.js
@@ -54,7 +54,7 @@ topicsController.get = function(req, res, callback) {
 				return helpers.notAllowed(req, res);
 			}
 
-			if ((!req.params.slug || results.topic.slug !== tid + '/' + req.params.slug) && (results.topic.slug && results.topic.slug !== tid + '/')) {
+			if (!res.locals.isAPI && (!req.params.slug || results.topic.slug !== tid + '/' + req.params.slug) && (results.topic.slug && results.topic.slug !== tid + '/')) {
 				var url = '/topic/' + encodeURI(results.topic.slug);
 				if (req.params.post_index){
 					url += '/'+req.params.post_index;