diff --git a/qurator/eynollah/ocrd-tool.json b/qurator/eynollah/ocrd-tool.json
index 76d4b7c..01d48fa 100644
--- a/qurator/eynollah/ocrd-tool.json
+++ b/qurator/eynollah/ocrd-tool.json
@@ -41,7 +41,7 @@
         "allow_scaling": {
           "type": "boolean",
           "default": false,
-          "description": "if this parameter set to true, this tool would check the scale and if needed it will scale it to perform better layout detection"
+          "description": "check the resolution against the number of detected columns and if needed, scale the image up or down during layout detection (heuristic to improve quality and performance)"
         },
         "headers_off": {
           "type": "boolean",