diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,7 +34,6 @@
     IconThemes
     I18n
     KIO
-    KDELibs4Support
     Solid
     Bookmarks
     GuiAddons
diff --git a/thumbnail/CMakeLists.txt b/thumbnail/CMakeLists.txt
--- a/thumbnail/CMakeLists.txt
+++ b/thumbnail/CMakeLists.txt
@@ -22,7 +22,6 @@
 	KF5::Solid
 	KF5::IconThemes
  	KF5::I18n
-	KF5::KDELibs4Support
 )
 
 set_target_properties(kio_thumbnail PROPERTIES OUTPUT_NAME "thumbnail")
diff --git a/thumbnail/thumbnail.cpp b/thumbnail/thumbnail.cpp
--- a/thumbnail/thumbnail.cpp
+++ b/thumbnail/thumbnail.cpp
@@ -58,7 +58,6 @@
 
 #include <kaboutdata.h>
 #include <kiconloader.h>
-#include <kde_file.h>
 
 #include <kio/thumbcreator.h>
 #include <kio/thumbsequencecreator.h>