diff --git a/src/numeric_range_trie.cpp b/src/numeric_range_trie.cpp
index 3c4e7cd1..5ce81287 100644
--- a/src/numeric_range_trie.cpp
+++ b/src/numeric_range_trie.cpp
@@ -186,16 +186,25 @@ void NumericTrie::search_less_than(const int32_t& value, const bool& inclusive,
 }
 
 void NumericTrie::search_equal_to(const int32_t& value, uint32_t*& ids, uint32_t& ids_length) {
-    uint32_t* match_ids = nullptr;
-    uint32_t match_ids_length = 0;
-    if (value < 0 && negative_trie != nullptr) {
-        negative_trie->search_equal_to(std::abs(value), match_ids, match_ids_length);
-    } else if (value >= 0 && positive_trie != nullptr) {
-        positive_trie->search_equal_to(value, match_ids, match_ids_length);
+    if ((value < 0 && negative_trie == nullptr) || (value >= 0 && positive_trie == nullptr)) {
+        return;
     }
 
-    ids = match_ids;
-    ids_length = match_ids_length;
+    uint32_t* equal_ids = nullptr;
+    uint32_t equal_ids_length = 0;
+
+    if (value < 0) {
+        negative_trie->search_equal_to(std::abs(value), equal_ids, equal_ids_length);
+    } else {
+        positive_trie->search_equal_to(value, equal_ids, equal_ids_length);
+    }
+
+    uint32_t* out = nullptr;
+    ids_length = ArrayUtils::or_scalar(equal_ids, equal_ids_length, ids, ids_length, &out);
+
+    delete [] equal_ids;
+    delete [] ids;
+    ids = out;
 }
 
 void NumericTrie::Node::insert(const int32_t& value, const uint32_t& seq_id) {
diff --git a/test/numeric_range_trie_test.cpp b/test/numeric_range_trie_test.cpp
index 3f591dfc..6a45054a 100644
--- a/test/numeric_range_trie_test.cpp
+++ b/test/numeric_range_trie_test.cpp
@@ -388,24 +388,23 @@ TEST_F(NumericRangeTrieTest, SearchEqualTo) {
     uint32_t ids_length = 0;
 
     trie->search_equal_to(0, ids, ids_length);
-    std::unique_ptr<uint32_t[]> ids_guard(ids);
 
     ASSERT_EQ(0, ids_length);
 
+    reset(ids, ids_length);
     trie->search_equal_to(-32768, ids, ids_length);
-    ids_guard.reset(ids);
 
     ASSERT_EQ(1, ids_length);
     ASSERT_EQ(43, ids[0]);
 
+    reset(ids, ids_length);
     trie->search_equal_to(24576, ids, ids_length);
-    ids_guard.reset(ids);
 
     ASSERT_EQ(1, ids_length);
     ASSERT_EQ(58, ids[0]);
 
+    reset(ids, ids_length);
     trie->search_equal_to(0x202020, ids, ids_length);
-    ids_guard.reset(ids);
 
     ASSERT_EQ(0, ids_length);
 }