diff --git a/src/lib.rs b/src/lib.rs
index 863f5e6..667dd6d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,5 +58,5 @@ pub use self::{
     config::Config,
     language::{Language, LanguageType, Languages},
     sort::Sort,
-    stats::{CodeStats, Report},
+    stats::{find_char_boundary, CodeStats, Report},
 };
diff --git a/src/stats.rs b/src/stats.rs
index fe2c25f..a5f271a 100644
--- a/src/stats.rs
+++ b/src/stats.rs
@@ -93,7 +93,8 @@ impl ops::AddAssign<CodeStats> for Report {
     }
 }
 
-fn find_char_boundary(s: &str, index: usize) -> usize {
+#[doc(hidden)]
+pub fn find_char_boundary(s: &str, index: usize) -> usize {
     for i in 0..4 {
         if s.is_char_boundary(index + i) {
             return index + i;