diff --git a/src/apps/debugger/dwarf/DwarfFile.h b/src/apps/debugger/dwarf/DwarfFile.h
index 0a6ae639b6..67021a1ae6 100644
--- a/src/apps/debugger/dwarf/DwarfFile.h
+++ b/src/apps/debugger/dwarf/DwarfFile.h
@@ -126,6 +126,9 @@ private:
 									const void*& _expression,
 									off_t& _length) const;
 
+private:
+			friend class 		DwarfFile::ExpressionEvaluationContext;
+
 private:
 			char*				fName;
 			ElfFile*			fElfFile;