diff --git a/openbis_all/source/bash/install-servers.sh b/openbis_all/source/bash/install-servers.sh
index 357af146b0d86f76e196acb91684809392c36a68..fdc32a05ee486b49593b12986f8ce58c0eb5d135 100755
--- a/openbis_all/source/bash/install-servers.sh
+++ b/openbis_all/source/bash/install-servers.sh
@@ -12,7 +12,7 @@
 set -o nounset
 set -o errexit
 
-if [ $# -lt 4 ]; then
+if [ $# -lt 1 ]; then
     echo "Usage: install-servers.sh <openBIS installation folder>"
     exit 1
 fi