diff --git a/lld/ELF/LinkerScript.h b/lld/ELF/LinkerScript.h
index e5f464ff1fd5..fe092b27d6f0 100644
--- a/lld/ELF/LinkerScript.h
+++ b/lld/ELF/LinkerScript.h
@@ -31,7 +31,6 @@ namespace elf {
 class Defined;
 class InputSection;
 class InputSectionBase;
-class InputSectionBase;
 class OutputSection;
 class SectionBase;
 class Symbol;
diff --git a/lld/ELF/SymbolTable.h b/lld/ELF/SymbolTable.h
index 8c9a8f8f2e76..6e93e0a144d9 100644
--- a/lld/ELF/SymbolTable.h
+++ b/lld/ELF/SymbolTable.h
@@ -17,14 +17,6 @@
 namespace lld {
 namespace elf {
 
-class CommonSymbol;
-class Defined;
-class LazyArchive;
-class LazyObject;
-class SectionBase;
-class SharedSymbol;
-class Undefined;
-
 // SymbolTable is a bucket of all known symbols, including defined,
 // undefined, or lazy symbols (the last one is symbols in archive
 // files whose archive members are not yet loaded).