diff --git a/Makefile.in b/Makefile.in
index 749fa170cc860dbe2a5692e728dfbf7903021df9..e684a09184a782c8454d65053dc12c385b73b9b4 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -91,6 +91,14 @@ start:
 	    "python scripts/ahrs_calibration.py -d ${DETECTOR_ID} -p ${MONITORING_LIGIER_PORT}" Enter
 	@tmux select-layout even-vertical
 
+	@# K40
+	@#
+	@tmux new-window -n k40 -t ${SESSION_NAME}
+	@tmux split-window -v -t ${SESSION_NAME}:k40
+	@tmux send-keys -t ${SESSION_NAME}:k40.1  \
+	    "python scripts/k40_calibration.py -d ${DETECTOR_ID} -p ${MONITORING_LIGIER_PORT}" Enter
+	@tmux select-layout even-vertical
+
 	@# Log.io
 	@#
 	@tmux new-window -n logio -t ${SESSION_NAME}