diff --git a/webserver/core/modbus_master.cpp b/webserver/core/modbus_master.cpp
index 4358d05..f252f7c 100755
--- a/webserver/core/modbus_master.cpp
+++ b/webserver/core/modbus_master.cpp
@@ -484,7 +484,6 @@ void *querySlaveDevices(void *arg)
                             int_input_buf[int_input_index] = tempBuff[j];
                             int_input_index++;
                         }
-                        int_input_index++;
                         pthread_mutex_unlock(&ioLock);
                     }