diff --git a/pttodoest/src/flags.rs b/pttodoest/src/flags.rs
index d426edc..57a666f 100644
--- a/pttodoest/src/flags.rs
+++ b/pttodoest/src/flags.rs
@@ -1,3 +1,5 @@
+use crate::tests as tests_pkg;
+
 use clap::Parser;
 use serde::{Deserialize, Serialize};
 use serde_yaml;
@@ -70,7 +72,7 @@ mod test_flags {
 
     #[test]
     fn test_flags_files_unhidden_only() {
-        tests::with_dir(|d| {
+        tests_pkg::with_dir(|d| {
             std::fs::File::create(d.path().join("plain")).unwrap();
             std::fs::File::create(d.path().join(".hidden")).unwrap();
 
@@ -86,11 +88,3 @@ mod test_flags {
         });
     }
 }
-
-mod tests {
-    use super::*;
-
-    pub fn with_dir(mut foo: impl FnMut(tempdir::TempDir)) {
-        foo(tempdir::TempDir::new("").unwrap());
-    }
-}
diff --git a/pttodoest/src/main.rs b/pttodoest/src/main.rs
index 54626e7..6547bf1 100755
--- a/pttodoest/src/main.rs
+++ b/pttodoest/src/main.rs
@@ -1,5 +1,6 @@
 use crate::flags as flags_pkg;
 mod flags;
+mod tests;
 
 pub fn main() {
     let flags = flags_pkg::Flags::new().expect("failed to flags");
diff --git a/pttodoest/src/tests.rs b/pttodoest/src/tests.rs
new file mode 100644
index 0000000..ff5abf0
--- /dev/null
+++ b/pttodoest/src/tests.rs
@@ -0,0 +1,3 @@
+pub fn with_dir(mut foo: impl FnMut(tempdir::TempDir)) {
+    foo(tempdir::TempDir::new("").unwrap());
+}