diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,6 +40,10 @@
 
 option(BUILD_QCH "Build API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)" OFF)
 add_feature_info(QCH ${BUILD_QCH} "API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)")
+
+option(BUILD_DESIGNERPLUGIN "Build plugin for Qt Designer" ON)
+add_feature_info(DESIGNERPLUGIN ${BUILD_DESIGNERPLUGIN} "Build plugin for Qt Designer")
+
 add_definitions(-DQT_NO_FOREACH)
 if (IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/po")
     ecm_install_po_files_as_qm(po)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -77,6 +77,10 @@
   DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5}/KCompletion COMPONENT Devel
 )
 
+if(BUILD_DESIGNERPLUGIN)
+    add_subdirectory(designer)
+endif()
+
 if(BUILD_QCH)
     ecm_add_qch(
         KF5Completion_QCH
diff --git a/src/designer/CMakeLists.txt b/src/designer/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/src/designer/CMakeLists.txt
@@ -0,0 +1,28 @@
+include(ECMAddQtDesignerPlugin)
+
+ecm_qtdesignerplugin_widget(KComboBox
+    TOOLTIP "Combo Box (KF5)"
+    GROUP "Input (KF5)"
+)
+ecm_qtdesignerplugin_widget(KHistoryComboBox
+    TOOLTIP "A combobox for offering a history and completion (KF5)"
+    WHATSTHIS "A combobox which implements a history like a unix shell"
+    GROUP "Input (KF5)"
+)
+ecm_qtdesignerplugin_widget(KLineEdit
+    TOOLTIP "Line Edit (KF5)"
+    GROUP "Input (KF5)"
+)
+
+ecm_add_qtdesignerplugin(kcompletionwidgets
+    NAME KCompletionWidgets
+    OUTPUT_NAME kcompletion5widgets
+    WIDGETS
+        KComboBox
+        KHistoryComboBox
+        KLineEdit
+    LINK_LIBRARIES
+        KF5::Completion
+    INSTALL_DESTINATION "${KDE_INSTALL_QTPLUGINDIR}/designer"
+    COMPONENT Devel
+)
diff --git a/src/designer/pics/kcombobox.png b/src/designer/pics/kcombobox.png
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

literal 0
Hc$@<O00001

diff --git a/src/designer/pics/khistorycombo.png b/src/designer/pics/khistorycombo.png
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

literal 0
Hc$@<O00001

diff --git a/src/designer/pics/klineedit.png b/src/designer/pics/klineedit.png
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

literal 0
Hc$@<O00001