diff --git a/winiso/deploy.fish b/winiso/deploy.fish
index 68fe78a3..de09f8c6 100755
--- a/winiso/deploy.fish
+++ b/winiso/deploy.fish
@@ -157,6 +157,7 @@ begin
 
     begin
         set -l wimFile "$winOverlay/$wimFile"
+        chmod u+w (dirname "$wimFile")
         chmod u+w "$wimFile"
 
         while [ ! (wiminfo "$wimFile" 1 | grep "^$editionField" | cut -d ":" -f2 | string trim) = "Professional" ]
@@ -169,6 +170,7 @@ begin
 
         wimoptimize "$wimFile"
         chmod u-w "$wimFile"
+        chmod u-w (dirname "$wimFile")
     end
 
     begin