diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
index ebf8a50ae8b..a986fa28f78 100644
--- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
@@ -1120,9 +1120,15 @@ struct LLVMRustThinLTOData {
 
   // Not 100% sure what these are, but they impact what's internalized and
   // what's inlined across modules, I believe.
+#if LLVM_VERSION_GE(17, 0)
+  DenseMap<StringRef, FunctionImporter::ImportMapTy> ImportLists;
+  DenseMap<StringRef, FunctionImporter::ExportSetTy> ExportLists;
+  DenseMap<StringRef, GVSummaryMapTy> ModuleToDefinedGVSummaries;
+#else
   StringMap<FunctionImporter::ImportMapTy> ImportLists;
   StringMap<FunctionImporter::ExportSetTy> ExportLists;
   StringMap<GVSummaryMapTy> ModuleToDefinedGVSummaries;
+#endif
   StringMap<std::map<GlobalValue::GUID, GlobalValue::LinkageTypes>> ResolvedODR;
 
   LLVMRustThinLTOData() : Index(/* HaveGVs = */ false) {}