diff --git a/src/modules/SX127x/SX1272.cpp b/src/modules/SX127x/SX1272.cpp
index 4cfa2e07..35ff6abe 100644
--- a/src/modules/SX127x/SX1272.cpp
+++ b/src/modules/SX127x/SX1272.cpp
@@ -415,12 +415,12 @@ int16_t SX1272::setSpreadingFactorRaw(uint8_t newSpreadingFactor) {
 
   // write registers
   if(newSpreadingFactor == SX127X_SF_6) {
-    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_1, SX1272_HEADER_IMPL_MODE | SX1272_RX_CRC_MODE_ON, 2, 1);
+    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_1, SX1272_HEADER_IMPL_MODE | SX127x::_crcEnabled ? SX1272_RX_CRC_MODE_ON : SX1272_RX_CRC_MODE_OFF, 2, 1);
     state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_2, SX127X_SF_6 | SX127X_TX_MODE_SINGLE, 7, 3);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECT_OPTIMIZE, SX127X_DETECT_OPTIMIZE_SF_6, 2, 0);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECTION_THRESHOLD, SX127X_DETECTION_THRESHOLD_SF_6);
   } else {
-    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_1, SX1272_HEADER_EXPL_MODE | SX1272_RX_CRC_MODE_ON,  2, 1);
+    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_1, SX1272_HEADER_EXPL_MODE | SX127x::_crcEnabled ? SX1272_RX_CRC_MODE_ON : SX1272_RX_CRC_MODE_OFF,  2, 1);
     state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_2, newSpreadingFactor | SX127X_TX_MODE_SINGLE, 7, 3);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECT_OPTIMIZE, SX127X_DETECT_OPTIMIZE_SF_7_12, 2, 0);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECTION_THRESHOLD, SX127X_DETECTION_THRESHOLD_SF_7_12);
diff --git a/src/modules/SX127x/SX1278.cpp b/src/modules/SX127x/SX1278.cpp
index ca0b8fab..1c958e44 100644
--- a/src/modules/SX127x/SX1278.cpp
+++ b/src/modules/SX127x/SX1278.cpp
@@ -493,12 +493,12 @@ int16_t SX1278::setSpreadingFactorRaw(uint8_t newSpreadingFactor) {
   // write registers
   if(newSpreadingFactor == SX127X_SF_6) {
     state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_1, SX1278_HEADER_IMPL_MODE, 0, 0);
-    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_2, SX127X_SF_6 | SX127X_TX_MODE_SINGLE | SX1278_RX_CRC_MODE_ON, 7, 2);
+    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_2, SX127X_SF_6 | SX127X_TX_MODE_SINGLE | SX127x::_crcEnabled ? SX1278_RX_CRC_MODE_ON : SX1278_RX_CRC_MODE_OFF, 7, 2);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECT_OPTIMIZE, SX127X_DETECT_OPTIMIZE_SF_6, 2, 0);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECTION_THRESHOLD, SX127X_DETECTION_THRESHOLD_SF_6);
   } else {
     state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_1, SX1278_HEADER_EXPL_MODE, 0, 0);
-    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_2, newSpreadingFactor | SX127X_TX_MODE_SINGLE | SX1278_RX_CRC_MODE_ON, 7, 2);
+    state |= _mod->SPIsetRegValue(SX127X_REG_MODEM_CONFIG_2, newSpreadingFactor | SX127X_TX_MODE_SINGLE | SX127x::_crcEnabled ? SX1278_RX_CRC_MODE_ON : SX1278_RX_CRC_MODE_OFF, 7, 2);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECT_OPTIMIZE, SX127X_DETECT_OPTIMIZE_SF_7_12, 2, 0);
     state |= _mod->SPIsetRegValue(SX127X_REG_DETECTION_THRESHOLD, SX127X_DETECTION_THRESHOLD_SF_7_12);
   }