diff --git a/qcaml/lib/qcaml.ml b/qcaml/lib/qcaml.ml
index f94dc16..a96182d 100644
--- a/qcaml/lib/qcaml.ml
+++ b/qcaml/lib/qcaml.ml
@@ -1,2 +1,8 @@
 module Common = Common
 module Ao = Ao
+module Gaussian_basis = Gaussian_basis
+module Gaussian_integrals = Gaussian_integrals
+module Linear_algebra = Linear_algebra
+module Operators = Operators
+module Particles = Particles
+