diff --git a/llvm/include/llvm/DebugInfo/LogicalView/Core/LVSupport.h b/llvm/include/llvm/DebugInfo/LogicalView/Core/LVSupport.h
index 50f2c9a09ff5d..67089d9e7d41b 100644
--- a/llvm/include/llvm/DebugInfo/LogicalView/Core/LVSupport.h
+++ b/llvm/include/llvm/DebugInfo/LogicalView/Core/LVSupport.h
@@ -14,7 +14,6 @@
 #define LLVM_DEBUGINFO_LOGICALVIEW_CORE_LVSUPPORT_H
 
 #include "llvm/ADT/SmallBitVector.h"
-#include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/DebugInfo/LogicalView/Core/LVStringPool.h"
 #include "llvm/Support/Debug.h"
diff --git a/llvm/lib/DWARFLinkerParallel/DWARFLinkerUnit.h b/llvm/lib/DWARFLinkerParallel/DWARFLinkerUnit.h
index 8d47ab925cd3a..0835fad1e667a 100644
--- a/llvm/lib/DWARFLinkerParallel/DWARFLinkerUnit.h
+++ b/llvm/lib/DWARFLinkerParallel/DWARFLinkerUnit.h
@@ -11,7 +11,6 @@
 
 #include "DWARFLinkerGlobalData.h"
 #include "OutputSections.h"
-#include "llvm/ADT/SmallString.h"
 #include "llvm/CodeGen/DIE.h"
 #include "llvm/DWARFLinkerParallel/DWARFLinker.h"
 #include "llvm/DWARFLinkerParallel/StringPool.h"
diff --git a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
index f6256aa57304b..e9264a5d851c0 100644
--- a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
+++ b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
@@ -16,7 +16,6 @@
 #include "TargetInfo/RISCVTargetInfo.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallBitVector.h"
-#include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/StringExtras.h"
diff --git a/llvm/tools/llvm-dwarfutil/Options.h b/llvm/tools/llvm-dwarfutil/Options.h
index e97833bdd79e7..f5e0a16c800a6 100644
--- a/llvm/tools/llvm-dwarfutil/Options.h
+++ b/llvm/tools/llvm-dwarfutil/Options.h
@@ -9,7 +9,6 @@
 #ifndef LLVM_TOOLS_LLVM_DWARFUTIL_OPTIONS_H
 #define LLVM_TOOLS_LLVM_DWARFUTIL_OPTIONS_H
 
-#include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringRef.h"
 
 namespace llvm {
diff --git a/llvm/tools/llvm-reduce/TestRunner.h b/llvm/tools/llvm-reduce/TestRunner.h
index 136cd80ea1c62..16d3dcd244a83 100644
--- a/llvm/tools/llvm-reduce/TestRunner.h
+++ b/llvm/tools/llvm-reduce/TestRunner.h
@@ -10,7 +10,6 @@
 #define LLVM_TOOLS_LLVM_REDUCE_TESTRUNNER_H
 
 #include "ReducerWorkItem.h"
-#include "llvm/ADT/SmallString.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Error.h"
 #include "llvm/Support/FileSystem.h"
diff --git a/llvm/unittests/TextAPI/TextStubHelpers.h b/llvm/unittests/TextAPI/TextStubHelpers.h
index f8409b10912c3..f3303da3b951b 100644
--- a/llvm/unittests/TextAPI/TextStubHelpers.h
+++ b/llvm/unittests/TextAPI/TextStubHelpers.h
@@ -6,7 +6,6 @@
 //
 //===-----------------------------------------------------------------------===/
 
-#include "llvm/ADT/SmallString.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/TextAPI/InterfaceFile.h"
 #include <algorithm>