diff --git a/include/llvm/MC/MCWinCOFFObjectWriter.h b/include/llvm/MC/MCWinCOFFObjectWriter.h
index 6e14cefaa0a..198a08b5f53 100644
--- a/include/llvm/MC/MCWinCOFFObjectWriter.h
+++ b/include/llvm/MC/MCWinCOFFObjectWriter.h
@@ -13,6 +13,7 @@
 namespace llvm {
 
 class MCAsmBackend;
+class MCContext;
 class MCFixup;
 class MCObjectWriter;
 class MCValue;