diff --git a/Cargo.toml b/Cargo.toml
index 812b910..37c294b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,8 +10,8 @@ repository = "https://github.com/InstantDomainSearch/instant-segment"
 documentation = "https://docs.rs/instant-segment"
 
 [features]
-__test_data = ["testcases"]
-testcases = []
+__test_data = ["test-cases"]
+test-cases = []
 
 [dependencies]
 ahash = "0.7.0"
diff --git a/src/lib.rs b/src/lib.rs
index 68e40e2..43161a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,10 +3,10 @@ use std::str;
 
 use smartstring::alias::String;
 
+#[cfg(feature = "test-cases")]
+pub mod test_cases;
 #[cfg(feature = "__test_data")]
 pub mod test_data;
-#[cfg(feature = "testcases")]
-pub mod testcases;
 
 /// Central data structure used to calculate word probabilities
 pub struct Segmenter {
diff --git a/src/testcases.rs b/src/test_cases.rs
similarity index 100%
rename from src/testcases.rs
rename to src/test_cases.rs
diff --git a/src/test_data.rs b/src/test_data.rs
index 5a4f8a7..63a4954 100644
--- a/src/test_data.rs
+++ b/src/test_data.rs
@@ -9,7 +9,7 @@ use super::Segmenter;
 
 #[test]
 fn test_data() {
-    crate::testcases::run(segmenter());
+    crate::test_cases::run(segmenter());
 }
 
 pub fn segmenter() -> Segmenter {