diff --git a/llvm/include/llvm/Remarks/RemarkStringTable.h b/llvm/include/llvm/Remarks/RemarkStringTable.h
index c40bb5fa0ecdb..60cf601e05aa7 100644
--- a/llvm/include/llvm/Remarks/RemarkStringTable.h
+++ b/llvm/include/llvm/Remarks/RemarkStringTable.h
@@ -17,18 +17,18 @@
 #define LLVM_REMARKS_REMARK_STRING_TABLE_H
 
 #include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Remarks/Remark.h"
 #include "llvm/Support/Allocator.h"
 #include <vector>
 
 namespace llvm {
 
 class raw_ostream;
+class StringRef;
 
 namespace remarks {
 
 struct ParsedStringTable;
+struct Remark;
 
 /// The string table used for serializing remarks.
 /// This table can be for example serialized in a section to be consumed after
diff --git a/llvm/lib/Remarks/RemarkStringTable.cpp b/llvm/lib/Remarks/RemarkStringTable.cpp
index 51156465be513..5f462f01bb9a6 100644
--- a/llvm/lib/Remarks/RemarkStringTable.cpp
+++ b/llvm/lib/Remarks/RemarkStringTable.cpp
@@ -11,10 +11,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Remarks/RemarkStringTable.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Remarks/Remark.h"
 #include "llvm/Remarks/RemarkParser.h"
-#include "llvm/Support/EndianStream.h"
-#include "llvm/Support/Error.h"
+#include "llvm/Support/raw_ostream.h"
 #include <vector>
 
 using namespace llvm;