diff --git a/phylo/src/evolutionary_models/mod.rs b/phylo/src/evolutionary_models/mod.rs
index 05e1822..bd853c2 100644
--- a/phylo/src/evolutionary_models/mod.rs
+++ b/phylo/src/evolutionary_models/mod.rs
@@ -132,4 +132,4 @@ pub trait EvoModelInfo {
 }
 
 #[cfg(test)]
-pub(crate) mod evolutionary_models_tests;
+pub(crate) mod tests;
diff --git a/phylo/src/evolutionary_models/evolutionary_models_tests.rs b/phylo/src/evolutionary_models/tests.rs
similarity index 100%
rename from phylo/src/evolutionary_models/evolutionary_models_tests.rs
rename to phylo/src/evolutionary_models/tests.rs
diff --git a/phylo/src/io/mod.rs b/phylo/src/io/mod.rs
index e3ebcb0..e814c52 100644
--- a/phylo/src/io/mod.rs
+++ b/phylo/src/io/mod.rs
@@ -186,4 +186,4 @@ pub fn write_newick_to_file(trees: &[Tree], path: PathBuf) -> Result<()> {
 }
 
 #[cfg(test)]
-mod io_tests;
+mod tests;
diff --git a/phylo/src/io/io_tests.rs b/phylo/src/io/tests.rs
similarity index 100%
rename from phylo/src/io/io_tests.rs
rename to phylo/src/io/tests.rs
diff --git a/phylo/src/likelihood/mod.rs b/phylo/src/likelihood/mod.rs
index 855634f..1b217f6 100644
--- a/phylo/src/likelihood/mod.rs
+++ b/phylo/src/likelihood/mod.rs
@@ -5,4 +5,4 @@ pub trait LikelihoodCostFunction {
 }
 
 #[cfg(test)]
-mod likelihood_tests;
+mod tests;
diff --git a/phylo/src/likelihood/likelihood_tests.rs b/phylo/src/likelihood/tests.rs
similarity index 100%
rename from phylo/src/likelihood/likelihood_tests.rs
rename to phylo/src/likelihood/tests.rs
diff --git a/phylo/src/pip_model/mod.rs b/phylo/src/pip_model/mod.rs
index bedd86a..3866f53 100644
--- a/phylo/src/pip_model/mod.rs
+++ b/phylo/src/pip_model/mod.rs
@@ -426,4 +426,4 @@ fn log_factorial(n: usize) -> f64 {
 }
 
 #[cfg(test)]
-mod pip_model_tests;
+mod tests;
diff --git a/phylo/src/pip_model/pip_model_tests.rs b/phylo/src/pip_model/tests.rs
similarity index 100%
rename from phylo/src/pip_model/pip_model_tests.rs
rename to phylo/src/pip_model/tests.rs
diff --git a/phylo/src/substitution_models/mod.rs b/phylo/src/substitution_models/mod.rs
index 94fec19..f602a37 100644
--- a/phylo/src/substitution_models/mod.rs
+++ b/phylo/src/substitution_models/mod.rs
@@ -319,4 +319,4 @@ impl<SubstModel: SubstitutionModel> SubstModelInfo<SubstModel> {
 }
 
 #[cfg(test)]
-pub(crate) mod substitution_models_tests;
+pub(crate) mod tests;
diff --git a/phylo/src/substitution_models/substitution_models_tests.rs b/phylo/src/substitution_models/tests.rs
similarity index 100%
rename from phylo/src/substitution_models/substitution_models_tests.rs
rename to phylo/src/substitution_models/tests.rs
diff --git a/phylo/src/tree/mod.rs b/phylo/src/tree/mod.rs
index e267e30..51478b6 100644
--- a/phylo/src/tree/mod.rs
+++ b/phylo/src/tree/mod.rs
@@ -444,4 +444,4 @@ fn compute_distance_matrix(sequences: &Sequences) -> nj_matrices::NJMat {
 }
 
 #[cfg(test)]
-mod tree_tests;
+mod tests;
diff --git a/phylo/src/tree/tree_tests.rs b/phylo/src/tree/tests.rs
similarity index 100%
rename from phylo/src/tree/tree_tests.rs
rename to phylo/src/tree/tests.rs