diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFBaseDIE.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFBaseDIE.h
index 9624a679583a..0058043017cd 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFBaseDIE.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFBaseDIE.h
@@ -12,14 +12,13 @@
 #include "lldb/Core/dwarf.h"
 #include "lldb/lldb-types.h"
 
-struct DIERef;
+class DIERef;
 class DWARFASTParser;
 class DWARFAttributes;
 class DWARFUnit;
 class DWARFDebugInfoEntry;
 class DWARFDeclContext;
 class SymbolFileDWARF;
-class DWARFDIE;
 
 class DWARFBaseDIE {
 public:
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
index d5e2eb873eaf..a4929df6fe59 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
@@ -62,7 +62,6 @@ public:
   friend class SymbolFileDWARFDebugMap;
   friend class SymbolFileDWARFDwo;
   friend class DebugMapModule;
-  friend struct DIERef;
   friend class DWARFCompileUnit;
   friend class DWARFDIE;
   friend class DWARFASTParserClang;
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
index 13813cd8cb28..afc6142e8231 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
@@ -133,7 +133,6 @@ protected:
   enum { kHaveInitializedOSOs = (1 << 0), kNumFlags };
 
   friend class DebugMapModule;
-  friend struct DIERef;
   friend class DWARFASTParserClang;
   friend class DWARFCompileUnit;
   friend class SymbolFileDWARF;