diff --git a/native/jni/Android.mk b/native/jni/Android.mk
index bf18897..e323742 100644
--- a/native/jni/Android.mk
+++ b/native/jni/Android.mk
@@ -74,6 +74,7 @@
         dictionary_structure_with_buffer_policy_factory.cpp \
         dynamic_patricia_trie_node_reader.cpp \
         dynamic_patricia_trie_policy.cpp \
+        dynamic_patricia_trie_reading_helper.cpp \
         dynamic_patricia_trie_reading_utils.cpp \
         patricia_trie_policy.cpp \
         patricia_trie_reading_utils.cpp) \