diff --git a/spi25.c b/spi25.c
index 60ddb96..d147dbb 100644
--- a/spi25.c
+++ b/spi25.c
@@ -376,7 +376,7 @@
 		cmd_buf[4] = (addr >>  0) & 0xff;
 		return 4;
 	} else {
-		if (flash->chip->feature_bits & FEATURE_4BA_EXT_ADDR) {
+		if (flash->chip->feature_bits & FEATURE_4BA_EAR_C5C8) {
 			if (spi_set_extended_address(flash, addr >> 24))
 				return -1;
 		} else if (addr >> 24) {