diff --git a/conf/usr/local/bin/check_available_conntrack b/conf/usr/local/bin/check_available_conntrack
index 8b13f03..1746d11 100755
--- a/conf/usr/local/bin/check_available_conntrack
+++ b/conf/usr/local/bin/check_available_conntrack
@@ -27,6 +27,11 @@ fi
 
 ################################################################################
 
+# If environnement file exist, we load it
+if [ -f /etc/env_check_nrpe ] ; then
+    source /etc/env_check_nrpe
+fi
+
 # Initialize variables
 RESULT=""
 PERF_DATA=""