1 files changed, 1 insertions, 0 deletions
diff --git a/libsolidity/ast/ASTForward.h b/libsolidity/ast/ASTForward.h
index 6aaa77ce..dad2b2e2 100644
--- a/libsolidity/ast/ASTForward.h
+++ b/libsolidity/ast/ASTForward.h
@@ -69,6 +69,7 @@ class Throw;
 class VariableDeclarationStatement;
 class ExpressionStatement;
 class Expression;
+class Conditional;
 class Assignment;
 class TupleExpression;
 class UnaryOperation;