diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -94,7 +94,12 @@
   batchrenamejob.cpp
 )
 
-ecm_qt_declare_logging_category(kiocore_SRCS HEADER kiocoredebug.h IDENTIFIER KIO_CORE CATEGORY_NAME kf5.kio.core)
+ecm_qt_declare_logging_category(kiocore_SRCS
+  HEADER kiocoredebug.h
+  IDENTIFIER KIO_CORE
+  CATEGORY_NAME kf5.kio.core
+  DEFAULT_SEVERITY Warning
+)
 
 if (UNIX)
    set(kiocore_SRCS ${kiocore_SRCS}
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -2,7 +2,12 @@
    faviconrequestjob.cpp
 )
 
-ecm_qt_declare_logging_category(kiogui_SRCS HEADER favicons_debug.h IDENTIFIER FAVICONS_LOG CATEGORY_NAME kf5.kio.favicons)
+ecm_qt_declare_logging_category(kiogui_SRCS
+  HEADER favicons_debug.h
+  IDENTIFIER FAVICONS_LOG
+  CATEGORY_NAME kf5.kio.favicons
+  DEFAULT_SEVERITY Warning
+)
 
 add_library(KF5KIOGui ${kiogui_SRCS})
 generate_export_header(KF5KIOGui BASE_NAME KIOGui)
diff --git a/src/ioslaves/remote/CMakeLists.txt b/src/ioslaves/remote/CMakeLists.txt
--- a/src/ioslaves/remote/CMakeLists.txt
+++ b/src/ioslaves/remote/CMakeLists.txt
@@ -8,7 +8,7 @@
 ecm_qt_declare_logging_category(kio_remote_SRCS HEADER debug.h
                                                IDENTIFIER KIOREMOTE_LOG
                                                CATEGORY_NAME kf5.kio.kio_remote
-                                               DEFAULT_SEVERITY Info)
+                                               DEFAULT_SEVERITY Warning)
 
 kcoreaddons_add_plugin(kio_remote
     SOURCES ${kio_remote_SRCS}
diff --git a/src/ioslaves/trash/CMakeLists.txt b/src/ioslaves/trash/CMakeLists.txt
--- a/src/ioslaves/trash/CMakeLists.txt
+++ b/src/ioslaves/trash/CMakeLists.txt
@@ -18,7 +18,12 @@
 endif()
 
 ########### next target ###############
-ecm_qt_declare_logging_category(kio_trash_PART_DEBUG_SRCS HEADER kiotrashdebug.h IDENTIFIER KIO_TRASH CATEGORY_NAME kf5.kio.trash)
+ecm_qt_declare_logging_category(kio_trash_PART_DEBUG_SRCS
+  HEADER kiotrashdebug.h
+  IDENTIFIER KIO_TRASH
+  CATEGORY_NAME kf5.kio.trash
+  DEFAULT_SEVERITY Warning
+)
 if(WIN32)
   set(kio_trash_PART_SRCS kio_trash_win.cpp ${kio_trash_PART_DEBUG_SRCS})
 else()
diff --git a/src/ioslaves/trash/tests/CMakeLists.txt b/src/ioslaves/trash/tests/CMakeLists.txt
--- a/src/ioslaves/trash/tests/CMakeLists.txt
+++ b/src/ioslaves/trash/tests/CMakeLists.txt
@@ -2,7 +2,12 @@
 
 ########### next target ###############
 
-ecm_qt_declare_logging_category(kio_trash_PART_test_DEBUG_SRCS HEADER kiotrashdebug.h IDENTIFIER KIO_TRASH CATEGORY_NAME kf5.kio.trash)
+ecm_qt_declare_logging_category(kio_trash_PART_test_DEBUG_SRCS
+  HEADER kiotrashdebug.h
+  IDENTIFIER KIO_TRASH
+  CATEGORY_NAME kf5.kio.trash
+  DEFAULT_SEVERITY Warning
+)
 
 set(testtrash_SRCS
     testtrash.cpp
diff --git a/src/kioexec/CMakeLists.txt b/src/kioexec/CMakeLists.txt
--- a/src/kioexec/CMakeLists.txt
+++ b/src/kioexec/CMakeLists.txt
@@ -7,7 +7,9 @@
 ecm_qt_declare_logging_category(kioexecd_SRCS
     HEADER kioexecdebug.h
     IDENTIFIER KIOEXEC
-    CATEGORY_NAME kf5.kio.execd)
+    CATEGORY_NAME kf5.kio.execd
+    DEFAULT_SEVERITY Warning
+)
 
 kcoreaddons_add_plugin(kioexecd
     SOURCES ${kioexecd_SRCS}
diff --git a/src/widgets/CMakeLists.txt b/src/widgets/CMakeLists.txt
--- a/src/widgets/CMakeLists.txt
+++ b/src/widgets/CMakeLists.txt
@@ -72,7 +72,12 @@
   )
 endif()
 
-ecm_qt_declare_logging_category(kiowidgets_SRCS HEADER kio_widgets_debug.h IDENTIFIER KIO_WIDGETS CATEGORY_NAME kf5.kio.widgets)
+ecm_qt_declare_logging_category(kiowidgets_SRCS
+  HEADER kio_widgets_debug.h
+  IDENTIFIER KIO_WIDGETS
+  CATEGORY_NAME kf5.kio.widgets
+  DEFAULT_SEVERITY Warning
+)
 
 qt5_add_dbus_adaptor(kiowidgets_SRCS org.kde.kio.FileUndoManager.xml fileundomanager_p.h KIO::FileUndoManagerPrivate fileundomanager_adaptor KIOFileUndoManagerAdaptor)