diff --git a/pywal/settings.py b/pywal/settings.py
index 1b97f6a..506b36c 100644
--- a/pywal/settings.py
+++ b/pywal/settings.py
@@ -13,7 +13,7 @@ import os
 import platform
 
 
-__version__ = "0.7.3"
+__version__ = "0.7.4"
 
 
 HOME = os.getenv("HOME", os.getenv("USERPROFILE"))
diff --git a/pywal/wallpaper.py b/pywal/wallpaper.py
index 598b4a5..612d03a 100644
--- a/pywal/wallpaper.py
+++ b/pywal/wallpaper.py
@@ -66,7 +66,7 @@ def set_desktop_wallpaper(desktop, img):
     """Set the wallpaper for the desktop environment."""
     desktop = str(desktop).lower()
 
-    if desktop == "WM":
+    if desktop == "wm":
         set_wm_wallpaper(img)
 
     elif "xfce" in desktop or "xubuntu" in desktop: