diff --git a/weboob/tools/browser2/filters/standard.py b/weboob/tools/browser2/filters/standard.py
index 433841d2..df9ec357 100644
--- a/weboob/tools/browser2/filters/standard.py
+++ b/weboob/tools/browser2/filters/standard.py
@@ -436,7 +436,7 @@ class Regexp(Filter):
         if self.template is None:
             return next(g for g in mobj.groups() if g is not None)
         else:
-            return mobj.expand(self.template)
+            return self.template(mobj) if callable(self.template) else mobj.expand(self.template)
 
 
 class Map(Filter):