diff --git a/src/pretix/helpers/format.py b/src/pretix/helpers/format.py
index 04253b5b7c..843b22650f 100644
--- a/src/pretix/helpers/format.py
+++ b/src/pretix/helpers/format.py
@@ -89,6 +89,13 @@ class SafeFormatter(Formatter):
         # Ignore format_spec
         return super().format_field(self._prepare_value(value), '')
 
+    def convert_field(self, value, conversion):
+        # Ignore any conversions
+        if conversion is None:
+            return value
+        else:
+            return str(value)
+
 
 def format_map(template, context, raise_on_missing=False, mode=SafeFormatter.MODE_RICH_TO_PLAIN, linkifier=None) -> FormattedString:
     if isinstance(template, FormattedString):
diff --git a/src/tests/helpers/test_format.py b/src/tests/helpers/test_format.py
index 5ed3ac9b15..7c27717615 100644
--- a/src/tests/helpers/test_format.py
+++ b/src/tests/helpers/test_format.py
@@ -29,6 +29,8 @@ def test_format_map():
     assert format_map("Foo {baz}", {"bar": 3}) == "Foo {baz}"
     assert format_map("Foo {bar.__module__}", {"bar": 3}) == "Foo {bar.__module__}"
     assert format_map("Foo {bar!s}", {"bar": 3}) == "Foo 3"
+    assert format_map("Foo {bar!r}", {"bar": '3'}) == "Foo 3"
+    assert format_map("Foo {bar!a}", {"bar": '3'}) == "Foo 3"
     assert format_map("Foo {bar:<20}", {"bar": 3}) == "Foo 3"