diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 0379567..d22968c 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -91,5 +91,14 @@ target_link_libraries(rk3588_gtests PRIVATE
     GTest::gtest_main
 )
 
+if(WIN32)
+    add_custom_command(TARGET rk3588_gtests POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+            $<TARGET_FILE:rk_shared_state>
+            $<TARGET_FILE_DIR:rk3588_gtests>
+        COMMENT "Copy rk_shared_state.dll next to rk3588_gtests for Windows test discovery"
+    )
+endif()
+
 include(GoogleTest)
 gtest_discover_tests(rk3588_gtests)