diff --git a/c3l_membership/views.py b/c3l_membership/views.py
--- a/c3l_membership/views.py
+++ b/c3l_membership/views.py
@@ -38,14 +38,13 @@ def index():
     if current_app.config["DIGICASH_ENABLED"]:
         choices.append(("digicash", gettext("by DigiCash")))
 
-    for cryptocurrency_label, options in current_app.config["CRYPTOCURRENCIES"].items():
-        if options["ENABLED"]:
-            choices.append(
-                (
-                    cryptocurrency_label,
-                    " ".join((gettext("by"), cryptocurrency_label.title())),
-                ),
-            )
+    choices.extend(
+        (cryptocurrency_label, " ".join((gettext("by"), cryptocurrency_label.title())))
+        for cryptocurrency_label, options in current_app.config[
+            "CRYPTOCURRENCIES"
+        ].items()
+        if options["ENABLED"]
+    )
 
     form.payment.choices = choices