diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d6ea520b6..52543916e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,7 +176,7 @@ endif(KWIN_BUILD_SCRIPTING)
 if(KWIN_BUILD_TABBOX)
     set(
         kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS}
-        tabbox.cpp
+        tabbox/tabbox.cpp
         tabbox/clientitemdelegate.cpp
         tabbox/clientmodel.cpp
         tabbox/desktopitemdelegate.cpp
diff --git a/tabbox.cpp b/tabbox/tabbox.cpp
similarity index 100%
rename from tabbox.cpp
rename to tabbox/tabbox.cpp
diff --git a/tabbox.h b/tabbox/tabbox.h
similarity index 100%
rename from tabbox.h
rename to tabbox/tabbox.h