diff --git a/src/duckdb_py/pyrelation.cpp b/src/duckdb_py/pyrelation.cpp
index 58cfcc29..9b605128 100644
--- a/src/duckdb_py/pyrelation.cpp
+++ b/src/duckdb_py/pyrelation.cpp
@@ -153,7 +153,7 @@ unique_ptr<DuckDBPyRelation> DuckDBPyRelation::ProjectFromTypes(const py::object
 			if (!projection.empty()) {
 				projection += ", ";
 			}
-			projection += names[i];
+			projection += KeywordHelper::WriteOptionallyQuoted(names[i]);
 		}
 	}
 	if (projection.empty()) {
diff --git a/tests/fast/test_relation.py b/tests/fast/test_relation.py
index f386b091..32349c68 100644
--- a/tests/fast/test_relation.py
+++ b/tests/fast/test_relation.py
@@ -688,3 +688,10 @@ def create_view(con, view_name: str) -> None:
 
         res = con.sql("select * from vw").fetchall()
         assert res == expected
+
+    def test_relation_select_dtypes_quotes_identifiers_with_spaces(self, duckdb_cursor):
+        df = pd.DataFrame({"na me": ["alice", "bob"], "x": [1, 2]})
+        rel = duckdb_cursor.from_df(df)
+        out = rel.select_dtypes([duckdb.sqltypes.VARCHAR]).fetchdf()
+        assert list(out.columns) == ["na me"]
+        assert out["na me"].tolist() == ["alice", "bob"]