diff --git a/sys/dev/pccard/pccbb/pccbb.c b/sys/dev/pccard/pccbb/pccbb.c
--- a/sys/dev/pccard/pccbb/pccbb.c
+++ b/sys/dev/pccard/pccbb/pccbb.c
@@ -1002,7 +1002,7 @@
 	uint32_t ends[2];
 	struct cbb_reslist *rle;
 	int align;
-	int prefetchable[2];
+	int prefetchable[2] = { 0, 0 };
 	uint32_t reg;
 
 	starts[0] = starts[1] = 0xffffffff;