diff --git a/hooks/subjects.pl b/hooks/subjects.pl
index 0ad91a5..19eb80d 100755
--- a/hooks/subjects.pl
+++ b/hooks/subjects.pl
@@ -171,11 +171,26 @@ sub tag_project
 	    }
 	}
 
+	log INFO, "Information de l'intranet...";
 	# Call API
-	log ERROR, $_ if(API::Projects::add($project_id, $year));
+	eval {
+	    API::Projects::add($project_id, $year);
+	};
+	if ($@)
+	{
+	    if ($@ =~ /apP]roject [aA]ll?ready [eE]xists/) {
+		log WARN, $@;
+	    }
+	    else {
+		log ERROR, $@;
+	    }
+	}
 
 	# FIXME: Remove next line after 2016 piscine: ça ne devrait pas être fait à ce moment là
-	log ERROR, $_ if(API::Projects::gen_groups($project_id, $year));
+	eval {
+	    API::Projects::gen_groups($project_id, $year);
+	};
+	log ERROR, $_ if($@);
     }
     else
     {