diff --git a/.local/bin/opout b/.local/bin/opout
index f81daa2..c86ae68 100755
--- a/.local/bin/opout
+++ b/.local/bin/opout
@@ -7,8 +7,7 @@
 basename="$(echo "$1" | sed 's/\.[^\/.]*$//')"
 
 case "$1" in
-	*.tex|*.md|*.[rR]md|*.ms|*.me|*.mom) setsid "$READER" "$basename".pdf >/dev/null 2>&1 & ;;
-	*.[0-9]) setsid "$READER" "$basename".pdf >/dev/null 2>&1 & ;;
-	*.html) setsid $BROWSER "$basename".html >/dev/null 2>&1 & ;;
+	*.tex|*.md|*.[rR]md|*.ms|*.me|*.mom|*.[0-9]) setsid xdg-open "$basename".pdf >/dev/null 2>&1 & ;;
+	*.html) setsid "$BROWSER" "$basename".html >/dev/null 2>&1 & ;;
 	*.sent) setsid sent "$1" >/dev/null 2>&1 & ;;
 esac