diff --git a/llvm/include/llvm/DWARFLinker/DWARFLinkerDeclContext.h b/llvm/include/llvm/DWARFLinker/DWARFLinkerDeclContext.h
index db40254bf6000..e59e15f00a7e5 100644
--- a/llvm/include/llvm/DWARFLinker/DWARFLinkerDeclContext.h
+++ b/llvm/include/llvm/DWARFLinker/DWARFLinkerDeclContext.h
@@ -16,6 +16,7 @@
 #include "llvm/CodeGen/NonRelocatableStringpool.h"
 #include "llvm/DWARFLinker/DWARFLinkerCompileUnit.h"
 #include "llvm/DebugInfo/DWARF/DWARFDie.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Path.h"
 
 namespace llvm {