diff --git a/software/ors-amarisoft/cell/common.json b/software/ors-amarisoft/cell/common.json
index 7bb053035994f2b76d71fb1227ab9b3af1daa8f6..98c63964f786edc41d15a7c9eb316fd183781d6d 100644
--- a/software/ors-amarisoft/cell/common.json
+++ b/software/ors-amarisoft/cell/common.json
@@ -49,9 +49,7 @@
     },
     "root_sequence_index": {
       "title": "Root Sequence Index",
-      "description": "Range: 0 to 837. Set the PRACH root sequence index (SIB2.rootSequenceIndex field). It must be different for each neighbour cell operating on the same frequency and sharing the same PRACH configuration.",
-      "type": "integer",
-      "default": 204
+      "type": "integer"
     },
     "inactivity_timer": {
       "title": "Inactivity Timer",
diff --git a/software/ors-amarisoft/cell/lte/input-schema.json b/software/ors-amarisoft/cell/lte/input-schema.json
index 5a007dd3ff63d74af9d8547ac9f215bad68f5535..329e05093e741d3e16e238c76890be9ba6b01661 100644
--- a/software/ors-amarisoft/cell/lte/input-schema.json
+++ b/software/ors-amarisoft/cell/lte/input-schema.json
@@ -65,6 +65,11 @@
       "title": "Tracking Area Code",
       "description": "Tracking Area Code in hexadecimal representation (range 0x0000 to 0xffff)",
       "type": "string"
+    },
+    "root_sequence_index": {
+      "$ref": "#/properties/root_sequence_index",
+      "description": "Range: 0 to 837. Set the PRACH root sequence index (SIB2.rootSequenceIndex field). It must be different for each neighbour cell operating on the same frequency and sharing the same PRACH configuration.",
+      "default": 204
     }
   }
 }
diff --git a/software/ors-amarisoft/cell/nr/input-schema.json b/software/ors-amarisoft/cell/nr/input-schema.json
index 8e35e6a612ad393ac2d74fc75ccdf84c620229c7..d30ead5874e360332b83efc6cce387ba572df901 100644
--- a/software/ors-amarisoft/cell/nr/input-schema.json
+++ b/software/ors-amarisoft/cell/nr/input-schema.json
@@ -69,6 +69,11 @@
       "description": "SSB position bitmap in bits (4, 8 or 64 bits depending on the DL frequency).",
       "type": "string",
       "default": "10000000"
+    },
+    "root_sequence_index": {
+      "$ref": "#/properties/root_sequence_index",
+      "description": "Range 0 to 837 for PRACH format up to 3, 0 to 137 otherwise. prach-RootSequenceIndex parameter. It must be different for each neighbour cell operating on the same frequency and sharing the same PRACH configuration.",
+      "default": 1
     }
   }
 }