diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 8d2112c..95958aa 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -10,6 +10,7 @@ if(NOT EXISTS "${phnt_DIR}/phnt.h")
 endif()
 
 # Default to a Release build
+get_property(GENERATOR_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 if(GENERATOR_IS_MULTI_CONFIG)
     set(CMAKE_CONFIGURATION_TYPES "Release" CACHE STRING "")
 elseif(NOT DEFINED CACHE{CMAKE_BUILD_TYPE})
diff --git a/test/driver.cpp b/test/driver.cpp
index fb68f19..d50f5a8 100644
--- a/test/driver.cpp
+++ b/test/driver.cpp
@@ -8,6 +8,7 @@ extern "C"
 #include <ntimage.h>
 #include <wdm.h>
 #include <stddef.h>
+#include <minwindef.h>
 }
 
 #define PHNT_VERSION PHNT_WIN11