1 files changed, 16 insertions, 0 deletions
diff --git a/src/mongo/db/matcher/expression_always_boolean.h b/src/mongo/db/matcher/expression_always_boolean.h
index ff12bcd1da0..6b7aff966fe 100644
--- a/src/mongo/db/matcher/expression_always_boolean.h
+++ b/src/mongo/db/matcher/expression_always_boolean.h
@@ -109,6 +109,14 @@ public:
     bool isTriviallyFalse() const final {
         return true;
     }
+
+    void acceptVisitor(MatchExpressionMutableVisitor* visitor) final {
+        visitor->visit(this);
+    }
+
+    void acceptVisitor(MatchExpressionConstVisitor* visitor) const final {
+        visitor->visit(this);
+    }
 };
 
 class AlwaysTrueMatchExpression final : public AlwaysBooleanMatchExpression {
@@ -128,6 +136,14 @@ public:
     bool isTriviallyTrue() const final {
         return true;
     }
+
+    void acceptVisitor(MatchExpressionMutableVisitor* visitor) final {
+        visitor->visit(this);
+    }
+
+    void acceptVisitor(MatchExpressionConstVisitor* visitor) const final {
+        visitor->visit(this);
+    }
 };
 
 }  // namespace mongo