diff --git a/clang/lib/Index/IndexDataStoreUtils.cpp b/clang/lib/Index/IndexDataStoreUtils.cpp
index e3f9119b0e4d0..d4fd185a832ac 100644
--- a/clang/lib/Index/IndexDataStoreUtils.cpp
+++ b/clang/lib/Index/IndexDataStoreUtils.cpp
@@ -421,6 +421,10 @@ indexstore_symbol_subkind_t index::getIndexStoreSubKind(SymbolSubKind K) {
     return INDEXSTORE_SYMBOL_SUBKIND_SWIFTASSOCIATEDTYPE;
   case SymbolSubKind::SwiftGenericTypeParam:
     return INDEXSTORE_SYMBOL_SUBKIND_SWIFTGENERICTYPEPARAM;
+  case SymbolSubKind::SwiftAccessorBorrow:
+    return INDEXSTORE_SYMBOL_SUBKIND_SWIFTACCESSORBORROW;
+  case SymbolSubKind::SwiftAccessorMutate:
+    return INDEXSTORE_SYMBOL_SUBKIND_SWIFTACCESSORMUTATE;
   }
   llvm_unreachable("unexpected symbol subkind");
 }