diff --git a/weboob/backends/pastealacon/backend.py b/weboob/backends/pastealacon/backend.py
index 619a9986..2ae390d5 100644
--- a/weboob/backends/pastealacon/backend.py
+++ b/weboob/backends/pastealacon/backend.py
@@ -59,7 +59,8 @@ class PastealaconBackend(BaseBackend, ICapPaste):
                 with self.browser:
                     contents = self.browser.get_contents(paste.id)
                     paste.contents = contents
-        elif fields:
+        # get all fields
+        elif fields is None or len(fields):
             with self.browser:
                 self.browser.fill_paste(paste)
         return paste
diff --git a/weboob/backends/pastebin/backend.py b/weboob/backends/pastebin/backend.py
index 107bbe78..9fe26671 100644
--- a/weboob/backends/pastebin/backend.py
+++ b/weboob/backends/pastebin/backend.py
@@ -61,7 +61,8 @@ class PastebinBackend(BaseBackend, ICapPaste):
                 with self.browser:
                     contents = self.browser.get_contents(paste.id)
                 paste.contents = contents
-        elif fields:
+        # get all fields
+        elif fields is None or len(fields):
             with self.browser:
                 self.browser.fill_paste(paste)
         return paste