diff --git a/Multiprotocol/FrSkyX_cc2500.ino b/Multiprotocol/FrSkyX_cc2500.ino
index f4aea70..de28cac 100644
--- a/Multiprotocol/FrSkyX_cc2500.ino
+++ b/Multiprotocol/FrSkyX_cc2500.ino
@@ -125,7 +125,7 @@ static void __attribute__((unused)) frskyX_init()
 	}
 
 	CC2500_WriteReg(CC2500_07_PKTCTRL1, 0x04);
-        LastOption = option ;
+        prev_option = option ;
 	CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
 	CC2500_Strobe(CC2500_SIDLE);    
 	//
@@ -288,10 +288,10 @@ uint16_t ReadFrSkyX()
 			state++;			
 			break;		
 		case FRSKY_DATA1:
-			if ( LastOption != option )
+			if ( prev_option != option )
 			{
 				CC2500_WriteReg(CC2500_0C_FSCTRL0,option);	// Frequency offset hack 
-				LastOption = option ;
+				prev_option = option ;
 			}
 			LED_ON;
 			CC2500_SetTxRxMode(TX_EN);