diff -rup a/sddm-theme/theme.conf.cmake b/sddm-theme/theme.conf.cmake
--- a/sddm-theme/theme.conf.cmake	2019-01-08 12:04:50.000000000 +0100
+++ b/sddm-theme/theme.conf.cmake	2019-02-10 16:30:53.128030654 +0100
@@ -1,4 +1,4 @@
 [General]
 type=image
 color=#1d99f3
-background=${CMAKE_INSTALL_PREFIX}/${WALLPAPER_INSTALL_DIR}/Next/contents/images/3200x2000.png
+background=${WALLPAPER_INSTALL_DIR}/Next/contents/images/3200x2000.png