--- a/profile/flatpak.fish
+++ b/profile/flatpak.fish
@@ -1,7 +1,7 @@
 if type -q flatpak
     # Set XDG_DATA_DIRS to include Flatpak installations
 
-    set -x --path XDG_DATA_DIRS
+    set -x --path XDG_DATA_DIRS $XDG_DATA_DIRS
 
     set -q XDG_DATA_DIRS[1]; or set XDG_DATA_DIRS /usr/local/share /usr/share
     set -q XDG_DATA_HOME; or set -l XDG_DATA_HOME $HOME/.local/share