diff --git a/config/default.yaml b/config/default.yaml
index d1d2a65..c219432 100644
--- a/config/default.yaml
+++ b/config/default.yaml
@@ -122,8 +122,9 @@ conference:
   name: "FOSDEM 2021"
 
 
-  # Schema may either be "json", "penta" or "pretalx". Remember to only
-  # specify one.
+  # You must specifiy a backend for your schedule.
+  # It may either be "json", "penta", or "pretalx". Remember to only
+  # specify *one*.
 
   # sample schedule configuration for using the json backend.
   schedule:
diff --git a/src/backends/penta/PentabarfParser.ts b/src/backends/penta/PentabarfParser.ts
index 874a3b1..4f7b324 100644
--- a/src/backends/penta/PentabarfParser.ts
+++ b/src/backends/penta/PentabarfParser.ts
@@ -221,7 +221,6 @@ export class PentabarfParser {
                 }
 
                 const roomQaEnabled = prefixConfig.qaAuditoriumRooms.find(p => auditorium.id.startsWith(p)) !== undefined;
-
             
                 for (const pEvent of arrayLike(pRoom.event)) {
                     if (!pEvent) continue;
diff --git a/src/backends/pretalx/PretalxApiClient.ts b/src/backends/pretalx/PretalxApiClient.ts
index 1047f35..5933e91 100644
--- a/src/backends/pretalx/PretalxApiClient.ts
+++ b/src/backends/pretalx/PretalxApiClient.ts
@@ -59,11 +59,33 @@ export interface PretalxTalk {
     "resources": {resource: string, description: string}[]
     "created": string,
     "pending_state": string|null,
-    answers: unknown[],
+    answers: {
+        "id": number,
+        "question": {
+            "id": 1,
+            "question": {
+                "en": string,
+            },
+            "required": false,
+            "target": "submission",
+            "options": {
+                id: string,
+                option: string,
+            }[],
+        },
+        "answer": string,
+        "answer_file": string|null,
+        "submission": string,
+        "person": string|null,
+        "options": {
+            id: string,
+            option: string,
+        }[],
+    }[],
     "notes": string,
     "internal_notes": string,
-    "tags": string[]
-    "tag_ids": string[]
+    "tags": string[],
+    "tag_ids": string[],
 }
 
 export class PretalxApiClient {