diff --git a/src/widgets/CMakeLists.txt b/src/widgets/CMakeLists.txt
index 97aca43..439caf5 100644
--- a/src/widgets/CMakeLists.txt
+++ b/src/widgets/CMakeLists.txt
@@ -1,27 +1,31 @@
 include_directories(../dialogs)
 include_directories(${QWT_INCLUDE_DIR})
 
 set(widgets_SRCS
     gcodeeditorwidget.cpp
     bedextruderwidget.cpp
     videomonitorwidget.cpp
     atcoreinstancewidget.cpp
     thermowidget.cpp
     )
 
 add_library(AtelierWidgets STATIC ${widgets_SRCS})
 
 target_link_libraries(AtelierWidgets
     Qt5::Core
     Qt5::Widgets
     Qt5::SerialPort
     KF5::I18n
     KF5::TextEditor
     Qt5::Charts
     Qt5::Multimedia
     Qt5::MultimediaWidgets
     AtCore::AtCore
     ${QWT_LIBRARY}
     )
 
+if(WIN32)
+    target_compile_definitions(AtelierWidgets PRIVATE -DQWT_DLL)
+endif()
+
 add_subdirectory(3dview)