diff --git a/_config.yml b/_config.yml
index 76a10ae..a8290dd 100644
--- a/_config.yml
+++ b/_config.yml
@@ -3,7 +3,7 @@ url: "https://lynnesbian.space/"
 collections:
   projects:
     output: true
-    permalink: "/:collection/:name"
+    permalink: "/:collection/:name:output_ext"
 
 defaults:
   - scope: