diff --git a/Managing Documents/scripted-updates.md b/Managing Documents/scripted-updates.md
index 2f9de30..0db227b 100644
--- a/Managing Documents/scripted-updates.md	
+++ b/Managing Documents/scripted-updates.md	
@@ -78,9 +78,10 @@ POST /products/_update/100
       if (ctx._source.in_stock < 0) {
         ctx.op = 'delete';
       }
-      
-      ctx._source.in_stock--;
+      else {
+        ctx._source.in_stock--;
+      }
     """
   }
 }
-```
\ No newline at end of file
+```