diff --git a/faiss/IndexIDMap.cpp b/faiss/IndexIDMap.cpp
index f2817ad4d..1a17df305 100644
--- a/faiss/IndexIDMap.cpp
+++ b/faiss/IndexIDMap.cpp
@@ -228,14 +228,14 @@ void IndexIDMapTemplate<IndexT>::range_search(
         typename IndexT::distance_t radius,
         RangeSearchResult* result,
         const SearchParameters* params) const {
-    if (params) {
+    if (params && params->sel) {
         SearchParameters internal_search_parameters;
         IDSelectorTranslated id_selector_translated(id_map, params->sel);
         internal_search_parameters.sel = &id_selector_translated;
 
         index->range_search(n, x, radius, result, &internal_search_parameters);
     } else {
-        index->range_search(n, x, radius, result);
+        index->range_search(n, x, radius, result, params);
     }
 
     const idx_t id_map_size = static_cast<idx_t>(id_map.size());
diff --git a/tests/test_search_params.py b/tests/test_search_params.py
index c92446293..37fbb5a4f 100644
--- a/tests/test_search_params.py
+++ b/tests/test_search_params.py
@@ -337,6 +337,32 @@ class TestSelector(unittest.TestCase):
         np.testing.assert_array_equal(Iref, Inew)
         np.testing.assert_array_almost_equal(Dref, Dnew, decimal=5)
 
+    def test_idmap_range_empty_params(self):
+        # This test crashes without checking both params && params->sel
+        # are non null in IndexIDMap::range_search().
+        index = faiss.IndexIDMap(faiss.IndexFlatL2(2))
+
+        xb = np.array(
+            [
+                [0, 0],
+                [1, 0],
+                [0, 2],
+            ],
+            dtype="float32",
+        )
+        ids = np.array([10, 20, 30], dtype="int64")
+        index.add_with_ids(xb, ids)
+        xq = np.array([[0, 0]], dtype="float32")
+
+        lims_ref, D_ref, I_ref = index.range_search(xq, 5.0)
+        lims, D, I = index.range_search(
+            xq, 5.0, params=faiss.SearchParameters()
+        )
+
+        np.testing.assert_array_equal(lims_ref, lims)
+        np.testing.assert_array_equal(sorted(I_ref), sorted(I))
+        np.testing.assert_array_equal(sorted(D_ref), sorted(D))
+
     def test_bounds(self):
         # https://github.com/facebookresearch/faiss/issues/3156
         d = 64  # dimension