diff --git a/sensorhandler.cpp b/sensorhandler.cpp
index 3a47e20..1a66a1e 100644
--- a/sensorhandler.cpp
+++ b/sensorhandler.cpp
@@ -379,6 +379,13 @@
 
     try
     {
+        if (ipmi::sensor::Mutability::Write !=
+              (iter->second.mutability & ipmi::sensor::Mutability::Write))
+        {
+            log<level::ERR>("Sensor Set operation is not allowed",
+                            entry("SENSOR_NUM=%d", cmdData.number));
+            return IPMI_CC_ILLEGAL_COMMAND;
+        }
         return iter->second.updateFunc(cmdData, iter->second);
     }
     catch (InternalFailure& e)