diff --git a/yli/__init__.py b/yli/__init__.py
index ee0d36a..9489567 100644
--- a/yli/__init__.py
+++ b/yli/__init__.py
@@ -16,7 +16,7 @@
 
 from .bayes_factors import bayesfactor_afbf
 from .distributions import beta_oddsratio, beta_ratio, hdi, transformed_dist
-from .fs import pickle_read_compressed, pickle_read_encrypted, pickle_write_compressed, pickle_write_encrypted
+from .io import pickle_read_compressed, pickle_read_encrypted, pickle_write_compressed, pickle_write_encrypted
 from .regress import PenalisedLogit, regress, vif
 from .sig_tests import anova_oneway, chi2, mannwhitney, pearsonr, ttest_ind
 
diff --git a/yli/fs.py b/yli/io.py
similarity index 100%
rename from yli/fs.py
rename to yli/io.py