diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -140,8 +140,17 @@
 
 target_link_libraries(test_bitcoin Boost::unit_test_framework rpcclient server)
 
-# FIXME: We need to detect if that flag is required. For now assume it is.
-target_compile_definitions(test_bitcoin PRIVATE BOOST_TEST_DYN_LINK)
+# We need to detect if the BOOST_TEST_DYN_LINK flag is required.
+set(CMAKE_REQUIRED_LIBRARIES Boost::unit_test_framework)
+check_cxx_source_compiles("
+	#define BOOST_TEST_DYN_LINK
+	#define BOOST_TEST_MAIN
+	#include <boost/test/unit_test.hpp>
+" BOOST_TEST_DYN_LINK)
+
+if(BOOST_TEST_DYN_LINK)
+	target_compile_definitions(test_bitcoin PRIVATE BOOST_TEST_DYN_LINK)
+endif(BOOST_TEST_DYN_LINK)
 
 if(BUILD_BITCOIN_WALLET)
 	target_sources(test_bitcoin