diff --git a/packages/functionals/botpress-qna/README.md b/packages/functionals/botpress-qna/README.md
index 2cfe4ec3154..284ab8d5e46 100755
--- a/packages/functionals/botpress-qna/README.md
+++ b/packages/functionals/botpress-qna/README.md
@@ -22,6 +22,7 @@ The following properties can be configured either in the `qna.json` file or usin
 | `exportCsvEncoding` | `QNA_EXPORT_CSV_ENCODING` | No | `utf8` | Encoding for CSV that can be exported from Q&A module
 | `qnaMakerApiKey` | `QNA_MAKER_API_KEY` | No | | API-key for [Microsoft QnA Maker](https://www.qnamaker.ai). If provided QnA maker gets used to save items and search through them (instead of NLU-module)
 | `qnaMakerKnowledgebase` | `QNA_MAKER_KNOWLEDGEBASE` | No | `botpress` | Name of the QnA Maker knowledgebase to use
+| `qnaCategories` | `QNA_CATEGORIES` | No | | Comma-separated list of categories to use within QNA-module
 
 # Usage
 
diff --git a/packages/functionals/botpress-qna/src/index.js b/packages/functionals/botpress-qna/src/index.js
index d506f520159..a70df647b6b 100755
--- a/packages/functionals/botpress-qna/src/index.js
+++ b/packages/functionals/botpress-qna/src/index.js
@@ -27,7 +27,8 @@ module.exports = {
     textRenderer: { type: 'string', required: true, default: '#builtin_text', env: 'QNA_TEXT_RENDERER' },
     exportCsvEncoding: { type: 'string', required: false, default: 'utf8', env: 'QNA_EXPORT_CSV_ENCODING' },
     qnaMakerApiKey: { type: 'string', required: false, env: 'QNA_MAKER_API_KEY' },
-    qnaMakerKnowledgebase: { type: 'string', required: false, default: 'botpress', env: 'QNA_MAKER_KNOWLEDGEBASE' }
+    qnaMakerKnowledgebase: { type: 'string', required: false, default: 'botpress', env: 'QNA_MAKER_KNOWLEDGEBASE' },
+    qnaCategories: { type: 'string', required: false, default: '', env: 'QNA_CATEGORIES' }
   },
   async init(bp, configurator) {
     const config = await configurator.loadAll()
@@ -61,7 +62,7 @@ module.exports = {
   async ready(bp, configurator) {
     const config = await configurator.loadAll()
     const storage = this.storage
-    let categories = []
+    const categories = config.qnaCategories.split(',')
     bp.qna = {
       /**
        * Parses and imports questions; consecutive questions with similar answer get merged
@@ -148,18 +149,7 @@ module.exports = {
        * @param {String} question - question to match against
        * @returns {Array.<{questions: Array, answer: String, id: String, confidence: Number, metadata: Array}>}
        */
-      answersOn: storage.answersOn.bind(storage),
-
-      /**
-       * @param {string[]} categoriesToRegister - array of category names to register
-       */
-
-      registerCategories(categoriesToRegister) {
-        if (!_.isArray(categoriesToRegister)) {
-          return
-        }
-        categories = [...categories, ...categoriesToRegister]
-      }
+      answersOn: storage.answersOn.bind(storage)
     }
 
     const router = bp.getRouter('botpress-qna')