diff --git a/README.md b/README.md
index 63a45923..c94adb69 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ https://arxiv.org/abs/1902.08154
 # Build status
 
 * Master [![master build status](https://travis-ci.org/QuantumPackage/qp2.svg?branch=master)](https://travis-ci.org/QuantumPackage/qp2)
-* Development [![dev build status](https://travis-ci.org/QuantumPackage/qp2.svg?branch=develop)](https://travis-ci.org/QuantumPackage/qp2)
+* Development [![dev build status](https://travis-ci.org/QuantumPackage/qp2.svg?branch=dev)](https://travis-ci.org/QuantumPackage/qp2)
 * Documentation [![Documentation Status](https://readthedocs.org/projects/quantum-package/badge/?version=master)](https://quantum-package.readthedocs.io/en/master/?badge=master)
 
 
diff --git a/configure b/configure
index 632c2298..9a4bbbc2 100755
--- a/configure
+++ b/configure
@@ -60,7 +60,7 @@ function execute () {
 }
 
 PACKAGES=""
-OCAML_PACKAGES="ocamlbuild cryptokit zmq core sexplib ppx_sexp_conv ppx_deriving getopt"
+OCAML_PACKAGES="ocamlbuild cryptokit zmq core.v0.11.3 sexplib ppx_sexp_conv ppx_deriving getopt"
 
 while true ; do
     case "$1" in
diff --git a/src/fci/fci.irp.f b/src/fci/fci.irp.f
index 3bae1e45..6c836bb4 100644
--- a/src/fci/fci.irp.f
+++ b/src/fci/fci.irp.f
@@ -48,7 +48,7 @@ program fci
   else
     PROVIDE mo_two_e_integrals_in_map
 
-   !call run_slave_cipsi
+   call run_slave_cipsi
 
   endif
 end