diff --git a/llvm/include/llvm/IR/LLVMContext.h b/llvm/include/llvm/IR/LLVMContext.h
index bbd125fd38cf1..79d5f73481842 100644
--- a/llvm/include/llvm/IR/LLVMContext.h
+++ b/llvm/include/llvm/IR/LLVMContext.h
@@ -17,6 +17,7 @@
 #include "llvm-c/Types.h"
 #include "llvm/IR/DiagnosticHandler.h"
 #include "llvm/Support/CBindingWrapping.h"
+#include "llvm/Support/Compiler.h"
 #include <cstdint>
 #include <memory>
 #include <optional>
@@ -64,7 +65,7 @@ enum {
 /// infrastructure, including the type and constant uniquing tables.
 /// LLVMContext itself provides no locking guarantees, so you should be careful
 /// to have one context per thread.
-class LLVMContext {
+class LLVM_ABI LLVMContext {
 public:
   LLVMContextImpl *const pImpl;
   LLVMContext();