diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index a4bd956..9cd8832 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -2095,7 +2095,7 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
 	pb.previous_block = 0;
 	pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
 	pb.is_reg = LINUX_S_ISREG(inode->i_mode);
-	pb.max_blocks = 1 << (31 - fs->super->s_log_block_size);
+	pb.max_blocks = ((blk64_t)1) << (31 - fs->super->s_log_block_size);
 	pb.inode = inode;
 	pb.pctx = pctx;
 	pb.ctx = ctx;