diff --git a/config/theme-1080p_21:9.txt b/config/theme-1080p_21:9.txt
index 1bb5f34..b2fafab 100644
--- a/config/theme-1080p_21:9.txt
+++ b/config/theme-1080p_21:9.txt
@@ -3,7 +3,7 @@
 
 # Global Property
 title-text: ""
-desktop-image: "background.png"
+desktop-image: "background.jpg"
 desktop-color: "#000000"
 terminal-font: "Terminus Regular 14"
 terminal-box: "terminal_box_*.png"