diff --git a/CMakeLists.txt b/CMakeLists.txt
index 789b26f..b7095b9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,7 @@ find_package(Qt5 ${REQUIRED_QT_VERSION} NO_MODULE REQUIRED
 find_package(KF5 ${KF5_VERSION} REQUIRED
              IconThemes         # Handling of icons
              CoreAddons         # Caches
+             TextWidgets        # Spin boxes
              GuiAddons          # Image cache
              Completion         # KComboBox
              XmlGui             # User interface