diff --git a/pywal/wallpaper.py b/pywal/wallpaper.py
index ba81a71..05f5d08 100644
--- a/pywal/wallpaper.py
+++ b/pywal/wallpaper.py
@@ -84,7 +84,7 @@ def set_desktop_wallpaper(desktop, img):
 def set_mac_wallpaper(img):
     """Set the wallpaper on macOS."""
     db_file = HOME / "Library/Application Support/Dock/desktoppicture.db"
-    subprocess.call(["sqlite3", str(db_file), f"update data set value = {img}"])
+    subprocess.call(["sqlite3", db_file, f"update data set value = '{img}'"])
 
     # Kill the dock to fix issues with wallpapers sharing names.
     util.disown("killall", "Dock")