diff --git a/src/main/rx/crsf.c b/src/main/rx/crsf.c
index aa29b2a410..71c42b05a3 100755
--- a/src/main/rx/crsf.c
+++ b/src/main/rx/crsf.c
@@ -244,6 +244,7 @@ STATIC_UNIT_TESTED uint8_t crsfFrameStatus(rxRuntimeConfig_t *rxRuntimeConfig)
 
             if (rxLinkStatistics.uplinkLQ > 0) {
                 int16_t uplinkStrength;   // RSSI dBm converted to %
+                uplinkStrength = constrain((100 * sq((osdConfig()->rssi_dbm_max - osdConfig()->rssi_dbm_min)) - (osdConfig()->rssi_dbm_max  - rxLinkStatistics.uplinkRSSI) * (100 * (osdConfig()->rssi_dbm_max  - rxLinkStatistics.uplinkRSSI))) / sq((osdConfig()->rssi_dbm_max - osdConfig()->rssi_dbm_min)),0,100);
                 if (rxLinkStatistics.uplinkRSSI >= osdConfig()->rssi_dbm_max )
                     uplinkStrength = 99;
                 else if (rxLinkStatistics.uplinkRSSI < osdConfig()->rssi_dbm_min)