diff --git a/external/irpf90 b/external/irpf90
index beac6153..4ab1b175 160000
--- a/external/irpf90
+++ b/external/irpf90
@@ -1 +1 @@
-Subproject commit beac615343f421bd6c0571a408ba389a6d5a32ac
+Subproject commit 4ab1b175fc7ed0d96c1912f13dc53579b24157a6
diff --git a/plugins/local/slater_tc/NEED b/plugins/local/slater_tc/NEED
new file mode 100644
index 00000000..ef0aa3f7
--- /dev/null
+++ b/plugins/local/slater_tc/NEED
@@ -0,0 +1,7 @@
+determinants
+normal_order_old
+bi_ort_ints
+bi_ortho_mos
+tc_keywords
+non_hermit_dav
+dav_general_mat
diff --git a/plugins/local/slater_tc/slater_tc.irp.f b/plugins/local/slater_tc/slater_tc.irp.f
new file mode 100644
index 00000000..27ab47c5
--- /dev/null
+++ b/plugins/local/slater_tc/slater_tc.irp.f
@@ -0,0 +1,7 @@
+program slater_tc
+  implicit none
+  BEGIN_DOC
+! TODO : Put the documentation of the program here
+  END_DOC
+  print *, 'Hello world'
+end