diff --git a/src/bin/lttng/commands/enable_channels.c b/src/bin/lttng/commands/enable_channels.c
index 8ba5db1ede..9bfce348b9 100644
--- a/src/bin/lttng/commands/enable_channels.c
+++ b/src/bin/lttng/commands/enable_channels.c
@@ -645,6 +645,11 @@ int cmd_enable_channels(int argc, const char **argv)
 			ret = CMD_UNDEFINED;
 			goto end;
 		}
+
+		if (opt_arg) {
+			free(opt_arg);
+			opt_arg = NULL;
+		}
 	}
 
 	ret = print_missing_or_multiple_domains(
@@ -756,5 +761,6 @@ int cmd_enable_channels(int argc, const char **argv)
 	/* Overwrite ret if an error occurred when enable_channel */
 	ret = command_ret ? command_ret : ret;
 	poptFreeContext(pc);
+	free(opt_arg);
 	return ret;
 }