diff --git a/libtiledbsoma/src/utils/arrow_adapter.cc b/libtiledbsoma/src/utils/arrow_adapter.cc
index 94d27c5a88..09ce1e3ae2 100644
--- a/libtiledbsoma/src/utils/arrow_adapter.cc
+++ b/libtiledbsoma/src/utils/arrow_adapter.cc
@@ -615,6 +615,8 @@ Dimension ArrowAdapter::_create_dim(
     std::shared_ptr<Context> ctx) {
     switch (type) {
         case TILEDB_STRING_ASCII:
+        case TILEDB_GEOM_WKB:
+        case TILEDB_GEOM_WKT:
             return Dimension::create(*ctx, name, type, nullptr, nullptr);
         case TILEDB_TIME_SEC:
         case TILEDB_TIME_MS: