diff --git a/core/modules/migrate/src/Plugin/migrate/process/FileCopy.php b/core/modules/migrate/src/Plugin/migrate/process/FileCopy.php
index c68fe34..2ce5009 100644
--- a/core/modules/migrate/src/Plugin/migrate/process/FileCopy.php
+++ b/core/modules/migrate/src/Plugin/migrate/process/FileCopy.php
@@ -96,17 +96,17 @@ public function transform($value, MigrateExecutableInterface $migrate_executable
     }
     list($source, $destination) = $value;
 
+    // Ensure the source file exists.
+    if (!file_exists($source)) {
+      throw new MigrateException("File '$source' does not exist");
+    }
+
     // If the source path or URI represents a remote resource, delegate to the
     // download plugin.
     if (!$this->isLocalUri($source)) {
       return $this->downloadPlugin->transform($value, $migrate_executable, $row, $destination_property);
     }
 
-    // Ensure the source file exists, if it's a local URI or path.
-    if (!file_exists($source)) {
-      throw new MigrateException("File '$source' does not exist");
-    }
-
     // If the start and end file is exactly the same, there is nothing to do.
     if ($this->isLocationUnchanged($source, $destination)) {
       return $destination;