diff --git a/bin/plasma-phone.cmake b/bin/plasma-phone.cmake
index 374b0304..baefb9ef 100644
--- a/bin/plasma-phone.cmake
+++ b/bin/plasma-phone.cmake
@@ -25,6 +25,7 @@ export KSCREEN_BACKEND=QScreen
 
 export KDE_FULL_SESSION=1
 export KDE_SESSION_VERSION=5
+export PLASMA_PLATFORM=phone
 
 export GRID_UNIT_PX=30