diff --git a/llvm/include/llvm/Passes/PassPlugin.h b/llvm/include/llvm/Passes/PassPlugin.h
index 013b7a827c47dd..967de9f29ba795 100644
--- a/llvm/include/llvm/Passes/PassPlugin.h
+++ b/llvm/include/llvm/Passes/PassPlugin.h
@@ -107,7 +107,13 @@ class PassPlugin {
 ///   };
 /// }
 /// ```
+
+#if defined(_WIN32) && defined(LLVM_BUILD_LLVM_DYLIB)
+extern "C" ::llvm::PassPluginLibraryInfo __declspec(dllexport)
+llvmGetPassPluginInfo();
+#else
 extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
 llvmGetPassPluginInfo();
+#endif
 
 #endif /* LLVM_PASSES_PASSPLUGIN_H */