diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,14 +26,21 @@
 include(CheckLibraryExists)
 include(FeatureSummary)
 
-find_package(Qt5 ${QT_MIN_VERSION} REQUIRED CONFIG COMPONENTS DBus Network Widgets WebChannel)
+find_package(Qt5 ${QT_MIN_VERSION} REQUIRED CONFIG COMPONENTS DBus Network Widgets)
 find_package(Qt5WebEngineWidgets ${QT_MIN_VERSION} CONFIG)
 set_package_properties(Qt5WebEngineWidgets PROPERTIES
                        URL "git://code.qt.org/qt/qtwebenginewidgets.git"
                        DESCRIPTION "Qt WebEngine module (web browsing engine)"
                        TYPE OPTIONAL
                        PURPOSE "Used by the HTML-based GUI ksysguard library"
                       )
+find_package(Qt5WebChannel ${QT_MIN_VERSION} CONFIG)
+set_package_properties(Qt5WebChannel PROPERTIES
+                       URL "git://code.qt.org/qt/qtwebchannel.git"
+                       DESCRIPTION "Qt WebChannel module"
+                       TYPE OPTIONAL
+                       PURPOSE "Used by the HTML-based GUI ksysguard library"
+                      )
 
 find_package(KF5 REQUIRED COMPONENTS CoreAddons Config I18n WindowSystem Completion Auth WidgetsAddons IconThemes ConfigWidgets Service GlobalAccel KIO)
 find_package(KF5 OPTIONAL_COMPONENTS Plasma)
diff --git a/processui/CMakeLists.txt b/processui/CMakeLists.txt
--- a/processui/CMakeLists.txt
+++ b/processui/CMakeLists.txt
@@ -37,7 +37,6 @@
         KF5::ConfigCore
     PRIVATE
         Qt5::DBus
-        Qt5::WebChannel
         KF5::I18n
         KF5::WindowSystem
         KF5::AuthCore
@@ -59,8 +58,8 @@
     target_link_libraries(processui PRIVATE Qt5::X11Extras KF5::WindowSystem)
 endif()
 
-if(Qt5WebEngineWidgets_FOUND)
-    target_link_libraries(processui PRIVATE Qt5::WebEngineWidgets)
+if(Qt5WebEngineWidgets_FOUND AND Qt5WebChannel_FOUND)
+    target_link_libraries(processui PRIVATE Qt5::WebEngineWidgets Qt5::WebChannel)
 endif()
 
 if(NOT HAVE_CLOCK_GETTIME_C)