diff --git a/src/main/java/org/asamk/signal/commands/GetAvatarCommand.java b/src/main/java/org/asamk/signal/commands/GetAvatarCommand.java
index 7b2be6d4..d640680c 100644
--- a/src/main/java/org/asamk/signal/commands/GetAvatarCommand.java
+++ b/src/main/java/org/asamk/signal/commands/GetAvatarCommand.java
@@ -43,7 +43,7 @@ public class GetAvatarCommand implements JsonRpcLocalCommand {
     ) throws CommandException {
         final var contactRecipient = ns.getString("contact");
         final var profileRecipient = ns.getString("profile");
-        final var groupId = ns.getString("groupId");
+        final var groupId = ns.getString("group-id");
 
         final InputStream data;
         try {