1 files changed, 3 insertions, 0 deletions
diff --git a/src/query.h b/src/query.h
index e3821f19..02f8f4e7 100644
--- a/src/query.h
+++ b/src/query.h
@@ -48,6 +48,9 @@ namespace ledger {
 
 class query_t : public predicate_t
 {
+protected:
+  class parser_t;
+
 public:
   class lexer_t
   {