diff --git a/crates/ruff_python_formatter/src/expression/string.rs b/crates/ruff_python_formatter/src/expression/string.rs
index 6343ae4ca2b32c..09c1ffbd8f8aba 100644
--- a/crates/ruff_python_formatter/src/expression/string.rs
+++ b/crates/ruff_python_formatter/src/expression/string.rs
@@ -357,7 +357,7 @@ impl Format<PyFormatContext<'_>> for StringPrefix {
 /// Detects the preferred quotes for `input`.
 /// * single quoted strings: The preferred quote style is the one that requires less escape sequences.
 /// * triple quoted strings: Use double quotes except the string contains a sequence of `"""`.
-pub(super) fn preferred_quotes(
+fn preferred_quotes(
     input: &str,
     quotes: StringQuotes,
     configured_style: QuoteStyle,
@@ -472,7 +472,7 @@ impl StringQuotes {
         self.triple
     }
 
-    pub(super) const fn text_len(self) -> TextSize {
+    const fn text_len(self) -> TextSize {
         if self.triple {
             TextSize::new(3)
         } else {
@@ -498,7 +498,7 @@ impl Format<PyFormatContext<'_>> for StringQuotes {
 /// with the provided `style`.
 ///
 /// Returns the normalized string and whether it contains new lines.
-pub(super) fn normalize_string(input: &str, quotes: StringQuotes) -> (Cow<str>, ContainsNewlines) {
+fn normalize_string(input: &str, quotes: StringQuotes) -> (Cow<str>, ContainsNewlines) {
     // The normalized string if `input` is not yet normalized.
     // `output` must remain empty if `input` is already normalized.
     let mut output = String::new();