diff --git a/manager.sh b/manager.sh
index 78399e0744681b722da585e2ce45165ec295bc02..9f5b47577f063dab6ac20d7e16ee8b217d97c01f 100755
--- a/manager.sh
+++ b/manager.sh
@@ -2,7 +2,7 @@
 
 # Script used as interface to manage a PostgreSQL database
 
-if [[ $# -ne 1 && $# -ne 2 ]]; then
+if [[ $# -ne 2 && $# -ne 3 ]]; then
     echo "Correct use: $0 <dbms> <task> [directory]"
     echo "The allowed dbms's are: psql and monet"
     echo "The allowed tasks are: create, load, fixture, drop and clean"