diff --git a/datapackage/resource.py b/datapackage/resource.py
index 3fef6e1..4875fcb 100644
--- a/datapackage/resource.py
+++ b/datapackage/resource.py
@@ -489,7 +489,7 @@ def _inspect_source(data, path, base_path, storage):
     elif len(path) == 1:
 
         # Remote
-        if path[0].startswith('http'):
+        if path[0].startswith('http') or path[0].startswith('ftp') or path[0].startswith('s3'):
             inspection['source'] = path[0]
             inspection['remote'] = True
         elif base_path and base_path.startswith('http'):