diff --git a/android/README.md b/android/README.md
index d70219fca..6e3522760 100644
--- a/android/README.md
+++ b/android/README.md
@@ -215,35 +215,35 @@ boilerplate.
 Called when a joining a conference was unsuccessful or when there was an error
 while in a conference.
 
-The `data` HashMap contains an "error" key describing the error and a "url"
-key with the conference URL.
+The `data` `Map` contains an "error" key describing the error and a "url" key
+with the conference URL.
 
 #### onConferenceJoined
 
 Called when a conference was joined.
 
-The `data` HashMap contains a "url" key with the conference URL.
+The `data` `Map` contains a "url" key with the conference URL.
 
 #### onConferenceLeft
 
 Called when a conference was left.
 
-The `data` HashMap contains a "url" key with the conference URL.
+The `data` `Map` contains a "url" key with the conference URL.
 
 #### onConferenceWillJoin
 
 Called before a conference is joined.
 
-The `data` HashMap contains a "url" key with the conference URL.
+The `data` `Map` contains a "url" key with the conference URL.
 
 #### onConferenceWillLeave
 
 Called before a conference is left.
 
-The `data` HashMap contains a "url" key with the conference URL.
+The `data` `Map` contains a "url" key with the conference URL.
 
 #### onLoadConfigError
 
 Called when loading the main configuration fails.
 
-The `data` HashMap contains a "error" key with the error.
+The `data` `Map` contains an "error" key with the error.
diff --git a/android/sdk/src/main/java/org/jitsi/meet/sdk/JitsiMeetViewListener.java b/android/sdk/src/main/java/org/jitsi/meet/sdk/JitsiMeetViewListener.java
index 29098626d..5a2041064 100644
--- a/android/sdk/src/main/java/org/jitsi/meet/sdk/JitsiMeetViewListener.java
+++ b/android/sdk/src/main/java/org/jitsi/meet/sdk/JitsiMeetViewListener.java
@@ -62,7 +62,7 @@ public interface JitsiMeetViewListener {
     /**
      * Called when loading the main configuration fails.
      *
-     * @param data - Map with a "error" key with the error.
+     * @param data - Map with an "error" key with the error.
      */
     void onLoadConfigError(Map<String, Object> data);
 }
diff --git a/ios/README.md b/ios/README.md
index fa8ce7891..328657398 100644
--- a/ios/README.md
+++ b/ios/README.md
@@ -155,4 +155,4 @@ The `data` dictionary contains a "url" key with the conference URL.
 
 Called when loading the main configuration fails.
 
-The `data` dictionary contains a "error" key with the error.
+The `data` dictionary contains an "error" key with the error.
diff --git a/ios/sdk/src/JitsiMeetViewDelegate.h b/ios/sdk/src/JitsiMeetViewDelegate.h
index 18332c134..2757fbb90 100644
--- a/ios/sdk/src/JitsiMeetViewDelegate.h
+++ b/ios/sdk/src/JitsiMeetViewDelegate.h
@@ -62,7 +62,7 @@
 /**
  * Called when loading the main configuration file fails.
  *
- * The {@code data} dictionary contains a {@code error} key with the error.
+ * The {@code data} dictionary contains an {@code error} key with the error.
  */
 - (void) loadConfigError:(NSDictionary *)data;