diff --git a/scripts/Windows/Config/Thunderbird/Install.ps1 b/scripts/Windows/Config/Thunderbird/Install.ps1
index add8a84ab..f478b2b9a 100644
--- a/scripts/Windows/Config/Thunderbird/Install.ps1
+++ b/scripts/Windows/Config/Thunderbird/Install.ps1
@@ -19,13 +19,13 @@ $defaultAssociations.Load($reader);
 $reader.Dispose();
 
 foreach ($association in $defaultAssociations.SelectNodes("/DefaultAssociations/Association")) {
-    $association.ApplicationName = "Thunderbird";
-
     switch ($association.Identifier) {
         "mailto" {
+            $association.ApplicationName = "Thunderbird";
             $association.ProgId = "Thunderbird.Url.mailto";
         };
         ".eml" {
+            $association.ApplicationName = "Thunderbird";
             $association.ProgId = "ThunderbirdEML";
         };
     }