diff --git a/tests/ui-toml/zero_single_char_names/clippy.toml b/tests/ui-toml/zero_single_char_names/clippy.toml
new file mode 100644
index 0000000000000..42a1067b95edd
--- /dev/null
+++ b/tests/ui-toml/zero_single_char_names/clippy.toml
@@ -0,0 +1 @@
+single-char-binding-names-threshold = 0
diff --git a/tests/ui-toml/zero_single_char_names/zero_single_char_names.rs b/tests/ui-toml/zero_single_char_names/zero_single_char_names.rs
new file mode 100644
index 0000000000000..22aaa242b9b9d
--- /dev/null
+++ b/tests/ui-toml/zero_single_char_names/zero_single_char_names.rs
@@ -0,0 +1,3 @@
+#![warn(clippy::many_single_char_names)]
+
+fn main() {}