diff --git a/scwx-qt/scwx-qt.cmake b/scwx-qt/scwx-qt.cmake
index f1759304..a8f7911e 100644
--- a/scwx-qt/scwx-qt.cmake
+++ b/scwx-qt/scwx-qt.cmake
@@ -206,10 +206,6 @@ qt6_create_translation_scwx(QM_FILES ${scwx-qt_SOURCE_DIR} ${TS_FILES})
 if (WIN32)
     target_compile_definitions(scwx-qt      PUBLIC WIN32_LEAN_AND_MEAN)
     target_compile_definitions(supercell-wx PUBLIC WIN32_LEAN_AND_MEAN)
-
-    # For Boost::log
-    target_compile_definitions(scwx-qt      PRIVATE BOOST_USE_WINAPI_VERSION=0x0601)
-    target_compile_definitions(supercell-wx PRIVATE BOOST_USE_WINAPI_VERSION=0x0601)
 endif()
 
 target_include_directories(scwx-qt PUBLIC ${scwx-qt_SOURCE_DIR}/source
diff --git a/test/test.cmake b/test/test.cmake
index 9525a4e6..2820dc09 100644
--- a/test/test.cmake
+++ b/test/test.cmake
@@ -54,11 +54,6 @@ endif()
 
 target_compile_definitions(wxtest PRIVATE SCWX_TEST_DATA_DIR="${SCWX_DIR}/test/data")
 
-if (WIN32)
-    # For Boost::log
-    target_compile_definitions(wxtest PRIVATE BOOST_USE_WINAPI_VERSION=0x0601)
-endif()
-
 gtest_discover_tests(wxtest)
 
 target_link_libraries(wxtest GTest::gtest
diff --git a/wxdata/wxdata.cmake b/wxdata/wxdata.cmake
index ec82c5b6..7c253c2f 100644
--- a/wxdata/wxdata.cmake
+++ b/wxdata/wxdata.cmake
@@ -202,9 +202,6 @@ target_link_libraries(wxdata INTERFACE Boost::iostreams
 
 if (WIN32)
     target_link_libraries(wxdata INTERFACE Ws2_32)
-
-    # For Boost::log
-    target_compile_definitions(wxdata PRIVATE BOOST_USE_WINAPI_VERSION=0x0601)
 endif()
 
 set_target_properties(wxdata PROPERTIES CXX_STANDARD 20