diff --git a/pcompress.c b/pcompress.c
index 1c3f81f..c4ced3a 100644
--- a/pcompress.c
+++ b/pcompress.c
@@ -2180,8 +2180,9 @@ start_compress(pc_ctx_t *pctx, const char *filename, uint64_t chunksize, int lev
 	 */
 	file_offset = 0;
 	if (pctx->enable_rabin_split) {
-		rctx = create_dedupe_context(chunksize, 0, 0, pctx->algo, &props, pctx->enable_delta_encode,
-		    pctx->enable_fixed_scan, VERSION, COMPRESS, 0, NULL, pctx->pipe_mode, nprocs);
+		rctx = create_dedupe_context(chunksize, 0, pctx->rab_blk_size, pctx->algo, &props,
+		    pctx->enable_delta_encode, pctx->enable_fixed_scan, VERSION, COMPRESS, 0, NULL,
+		    pctx->pipe_mode, nprocs);
 		rbytes = Read_Adjusted(uncompfd, cread_buf, chunksize, &rabin_count, rctx);
 	} else {
 		rbytes = Read(uncompfd, cread_buf, chunksize);
diff --git a/rabin/rabin_dedup.c b/rabin/rabin_dedup.c
index 83414c6..51fd44e 100755
--- a/rabin/rabin_dedup.c
+++ b/rabin/rabin_dedup.c
@@ -512,8 +512,6 @@ dedupe_compress(dedupe_context_t *ctx, uchar_t *buf, uint64_t *size, uint64_t of
 			ctx->blocks[i]->index = i; // Need to store for sorting
 			ctx->blocks[i]->length = length;
 			ctx->blocks[i]->similar = 0;
-			ctx->blocks[i]->hash = XXH32(buf1+last_offset, length, 0);
-			ctx->blocks[i]->similarity_hash = ctx->blocks[i]->hash;
 			last_offset += length;
 		}
 		goto process_blocks;
diff --git a/rabin/rabin_dedup.h b/rabin/rabin_dedup.h
index d6cc1d9..323f9db 100644
--- a/rabin/rabin_dedup.h
+++ b/rabin/rabin_dedup.h
@@ -80,7 +80,7 @@
 #define	RAB_POLYNOMIAL_WIN_SIZE 16
 #define	RAB_POLYNOMIAL_MIN_WIN_SIZE 8
 #define	RAB_POLYNOMIAL_MAX_WIN_SIZE 64
-#define	RAB_POLYNOMIAL_MAX_BLOCK_SIZE (128 * 1024)
+#define	RAB_POLYNOMIAL_MAX_BLOCK_SIZE (64 * 1024)
 #define	RAB_BLK_MASK (((1 << RAB_BLK_MIN_BITS) - 1) >> 1)
 #define	RAB_BLK_AVG_SZ(x) (1 << ((x) + RAB_BLK_MIN_BITS))