diff --git a/src/libply/ply-command-parser.c b/src/libply/ply-command-parser.c
index 3dbc6df9..dce515fd 100644
--- a/src/libply/ply-command-parser.c
+++ b/src/libply/ply-command-parser.c
@@ -371,6 +371,8 @@ ply_command_parser_free (ply_command_parser_t *command_parser)
   ply_list_free (command_parser->available_subcommands);
   ply_list_free (command_parser->read_subcommands);
 
+  ply_command_free (command_parser->main_command);
+
   free (command_parser);
 }