diff --git a/src/widgets/CMakeLists.txt b/src/widgets/CMakeLists.txt
--- a/src/widgets/CMakeLists.txt
+++ b/src/widgets/CMakeLists.txt
@@ -140,43 +140,45 @@
 
 ######### Build and install QtDesigner plugin #############
 
-include(ECMAddQtDesignerPlugin)
-ecm_qtdesignerplugin_widget(Akonadi::AgentInstanceWidget
-    INCLUDE_FILE "agentinstancewidget.h"
-    TOOLTIP "Akonadi Agent Instance Settings (Akonadi)"
-    WHATSTHIS "A widget to configure akonadi instance."
-    GROUP "Input (KDE-PIM)"
+if(BUILD_DESIGNERPLUGIN)
+    include(ECMAddQtDesignerPlugin)
+    ecm_qtdesignerplugin_widget(Akonadi::AgentInstanceWidget
+        INCLUDE_FILE "agentinstancewidget.h"
+        TOOLTIP "Akonadi Agent Instance Settings (Akonadi)"
+        WHATSTHIS "A widget to configure akonadi instance."
+        GROUP "Input (KDE-PIM)"
     )
-ecm_qtdesignerplugin_widget(Akonadi::EntityTreeView
-    INCLUDE_FILE "entitytreeview.h"
-    TOOLTIP "A view to show an item/collection tree provided by an EntityTreeModel (Akonadi)"
-    WHATSTHIS "A view to show an item/collection tree provided by an EntityTreeModel."
-    GROUP "Input (KDE-PIM)"
+    ecm_qtdesignerplugin_widget(Akonadi::EntityTreeView
+        INCLUDE_FILE "entitytreeview.h"
+        TOOLTIP "A view to show an item/collection tree provided by an EntityTreeModel (Akonadi)"
+        WHATSTHIS "A view to show an item/collection tree provided by an EntityTreeModel."
+        GROUP "Input (KDE-PIM)"
     )
-ecm_qtdesignerplugin_widget(Akonadi::TagSelectWidget
-    INCLUDE_FILE "tagselectwidget.h"
-    TOOLTIP "A Widget to select tag (Akonadi)"
-    WHATSTHIS "A Widget to select tag."
-    GROUP "Input (KDE-PIM)"
+    ecm_qtdesignerplugin_widget(Akonadi::TagSelectWidget
+        INCLUDE_FILE "tagselectwidget.h"
+        TOOLTIP "A Widget to select tag (Akonadi)"
+        WHATSTHIS "A Widget to select tag."
+        GROUP "Input (KDE-PIM)"
     )
-ecm_qtdesignerplugin_widget(Akonadi::ManageAccountWidget
-    INCLUDE_FILE "manageaccountwidget.h"
-    TOOLTIP "A Widget to Manage Akonadi Account (KDE-PIM)"
-    WHATSTHIS "A Widget to Manage Akonadi Account."
-    GROUP "Input (KDE-PIM)"
+    ecm_qtdesignerplugin_widget(Akonadi::ManageAccountWidget
+        INCLUDE_FILE "manageaccountwidget.h"
+        TOOLTIP "A Widget to Manage Akonadi Account (KDE-PIM)"
+        WHATSTHIS "A Widget to Manage Akonadi Account."
+        GROUP "Input (KDE-PIM)"
     )
 
-ecm_add_qtdesignerplugin(akonadiwidgets
-    NAME AkonadiWidgets
-    OUTPUT_NAME akonadiwidgets
-    WIDGETS
-    Akonadi::AgentInstanceWidget
-    Akonadi::EntityTreeView
-    Akonadi::TagSelectWidget
-    Akonadi::ManageAccountWidget
-    LINK_LIBRARIES
-    KF5::AkonadiCore
-    KF5::AkonadiWidgets
-    INSTALL_DESTINATION "${KDE_INSTALL_QTPLUGINDIR}/designer"
-    COMPONENT Devel
+    ecm_add_qtdesignerplugin(akonadiwidgets
+        NAME AkonadiWidgets
+        OUTPUT_NAME akonadiwidgets
+        WIDGETS
+        Akonadi::AgentInstanceWidget
+        Akonadi::EntityTreeView
+        Akonadi::TagSelectWidget
+        Akonadi::ManageAccountWidget
+        LINK_LIBRARIES
+        KF5::AkonadiCore
+        KF5::AkonadiWidgets
+        INSTALL_DESTINATION "${KDE_INSTALL_QTPLUGINDIR}/designer"
+        COMPONENT Devel
     )
+endif()