diff --git a/tests/unit_tests/CMakeLists.txt b/tests/unit_tests/CMakeLists.txt
index c480a312..54f25431 100644
--- a/tests/unit_tests/CMakeLists.txt
+++ b/tests/unit_tests/CMakeLists.txt
@@ -29,6 +29,7 @@
 set(unit_tests_sources
   address_from_url.cpp
   base58.cpp
+  BlockchainDB.cpp
   block_reward.cpp
   chacha8.cpp
   checkpoints.cpp