diff --git a/src/main/java/org/asamk/signal/commands/RemoteDeleteCommand.java b/src/main/java/org/asamk/signal/commands/RemoteDeleteCommand.java
index 81da8a27..40d9a730 100644
--- a/src/main/java/org/asamk/signal/commands/RemoteDeleteCommand.java
+++ b/src/main/java/org/asamk/signal/commands/RemoteDeleteCommand.java
@@ -26,9 +26,14 @@ public class RemoteDeleteCommand implements DbusCommand {
                 .required(true)
                 .type(long.class)
                 .help("Specify the timestamp of the message to delete.");
-        var mut = subparser.addMutuallyExclusiveGroup();
-        mut.addArgument("-g", "--group").help("Specify the recipient group ID.");
-        mut.addArgument("recipient").help("Specify the recipients' phone number.").nargs("*");
+        var mut = subparser.addMutuallyExclusiveGroup()
+                .required(true);
+        mut.addArgument("-g", "--group")
+                .required(false)
+                .help("Specify the recipient group ID.");
+        mut.addArgument("recipient")
+                .required(false)
+                .help("Specify the recipients' phone number.").nargs("*");
     }
 
     @Override
@@ -36,6 +41,8 @@ public class RemoteDeleteCommand implements DbusCommand {
         final List<String> recipients = ns.getList("recipient");
         final var groupIdString = ns.getString("group");
 
+        // Possibly unnecessary (see above — recipient(s) or group is required),
+        // but just for case...
         final var noRecipients = recipients == null || recipients.isEmpty();
         if (noRecipients && groupIdString == null) {
             throw new UserErrorException("No recipients given");