diff --git a/armsrc/Makefile b/armsrc/Makefile
index 054f20b66..baf420a26 100644
--- a/armsrc/Makefile
+++ b/armsrc/Makefile
@@ -31,7 +31,7 @@ SRC_LF = lfops.c hitag2.c hitagS.c lfsampling.c pcf7931.c lfdemod.c
 SRC_ISO15693 = iso15693.c iso15693tools.c
 SRC_ISO14443a = iso14443a.c mifareutil.c mifarecmd.c mifaresniff.c epa.c
 SRC_ISO14443b = iso14443b.c
-SRC_CRAPTO1 = crapto1.c crypto1.c des.c aes.c desfire_key.c desfire_crypto.c mifaredesfire.c
+SRC_CRAPTO1 = crypto1.c des.c aes.c desfire_key.c desfire_crypto.c mifaredesfire.c
 SRC_CRC = iso14443crc.c crc.c crc16.c crc32.c 
 SRC_EMV = tlv.c emvdataels.c emvutil.c emvcmd.c 									 
 SRC_ICLASS = iclass.c optimized_cipher.c
diff --git a/common/lfdemod.c b/common/lfdemod.c
index 91e59e087..86f2e0703 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -1586,7 +1586,7 @@ int pskRawDemod_ext(uint8_t dest[], size_t *size, int *clock, int *invert, int *
 	uint8_t curPhase = *invert;
 	uint8_t fc=0;
 	size_t i=0, numBits=0, waveStart=1, waveEnd=0, firstFullWave=0, lastClkBit=0;
-	uint16_t fullWaveLen=0, waveLenCnt=0, avgWaveVal;
+	uint16_t fullWaveLen=0, waveLenCnt=0, avgWaveVal=0;
 	uint16_t errCnt=0, errCnt2=0;
 
 	*clock = DetectPSKClock(dest, *size, *clock, &firstFullWave, &curPhase, &fc);