diff --git a/inc/bb.h b/inc/bb.h
index dbabf10..9667ec3 100644
--- a/inc/bb.h
+++ b/inc/bb.h
@@ -714,7 +714,7 @@ unsigned int *OrigSrcAddr, *OrigDstAddr;			\
 int bb_fast;							\
 unsigned int preloop_mask, postloop_mask, sdw_mask;		\
 unsigned int *dst32addr, *src32addr;			\
-unsigned int shS, savedS, newS;			\
+unsigned int shS, savedS = 0, newS;			\
 int srcRshift;