diff --git a/src/eynollah/ocrd-tool.json b/src/eynollah/ocrd-tool.json
index e972ec8..ce15206 100644
--- a/src/eynollah/ocrd-tool.json
+++ b/src/eynollah/ocrd-tool.json
@@ -38,7 +38,7 @@
          "textline_light": {
           "type": "boolean",
           "default": true,
-          "description": "Light version need textline light"
+          "description": "Light version need textline light. If this parameter set to true, this tool will try to return contoure of textlines instead of rectangle bounding box of textline with a faster method."
         },
         "tables": {
           "type": "boolean",
@@ -65,11 +65,6 @@
           "default": false,
           "description": "if this parameter set to true, this tool would check that input image need resizing and enhancement or not."
         },
-        "textline_light": {
-          "type": "boolean",
-          "default": false,
-          "description": "if this parameter set to true, this tool will try to return contoure of textlines instead of rectangle bounding box of textline with a faster method."
-        },
         "right_to_left": {
           "type": "boolean",
           "default": false,