diff --git a/common/lfdemod.c b/common/lfdemod.c
index 27f7bb063..49c5877e0 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -710,7 +710,7 @@ int Visa2kDemod_AM(uint8_t *dest, size_t *size) {
 // by iceman
 // find Noralsy preamble in already demoded data
 int NoralsyDemod_AM(uint8_t *dest, size_t *size) {
-	if (*size < 96*2) return -1; //make sure buffer has data
+	if (*size < 96) return -1; //make sure buffer has data
 	size_t startIdx = 0;
 	uint8_t preamble[] = {1,0,1,1,1,0,1,1,0,0,0,0};
 	uint8_t errChk = preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx);