1 files changed, 2 insertions, 0 deletions
diff --git a/xfa/fxfa/fm2js/cxfa_fmexpression.h b/xfa/fxfa/fm2js/cxfa_fmexpression.h
index b2bbc43968..47b2d9cabd 100644
--- a/xfa/fxfa/fm2js/cxfa_fmexpression.h
+++ b/xfa/fxfa/fm2js/cxfa_fmexpression.h
@@ -23,6 +23,8 @@ enum XFA_FM_EXPTYPE {
   XFA_FM_EXPTYPE_CONTINUE,
 };
 
+class CFX_WideTextBuf;
+
 class CXFA_FMExpression {
  public:
   explicit CXFA_FMExpression(uint32_t line);