diff --git a/tests/slic3rutils/CMakeLists.txt b/tests/slic3rutils/CMakeLists.txt
index 0063de1d1..e1ac113ae 100644
--- a/tests/slic3rutils/CMakeLists.txt
+++ b/tests/slic3rutils/CMakeLists.txt
@@ -9,5 +9,9 @@ if (MSVC)
 endif ()
 set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")
 
+if (WIN32)
+    prusaslicer_copy_dlls(${_TEST_NAME}_tests)
+endif()
+
 # catch_discover_tests(${_TEST_NAME}_tests TEST_PREFIX "${_TEST_NAME}: ")
 add_test(${_TEST_NAME}_tests ${_TEST_NAME}_tests "${CATCH_EXTRA_ARGS} exclude:[NotWorking]")