diff --git a/setup.py b/setup.py
index 23b0552..a65dec2 100644
--- a/setup.py
+++ b/setup.py
@@ -183,6 +183,7 @@ setup(name='schainpy',
                 "schainf/Ffiles/cbuni.f",
                 "schainf/Ffiles/ckscl.f",
                 "schainf/Ffiles/crati.f",
+                "schainf/Ffiles/cacai.f",
                 "schainf/Ffiles/cmlri.f",
                 "schainf/Ffiles/cs1s2.f",
                 "schainf/Ffiles/cseri.f",