diff --git a/82802ab.c b/82802ab.c
index e450b5d..70c6af0 100644
--- a/82802ab.c
+++ b/82802ab.c
@@ -44,7 +44,7 @@
 {
 	chipaddr bios = flash->virtual_memory;
 	uint8_t id1, id2, flashcontent1, flashcontent2;
-	int shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED) != 0;
+	int shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED) ? 1 : 0;
 
 	/* Reset to get a clean state */
 	chip_writeb(flash, 0xFF, bios);