diff --git a/include/spdk/reduce.h b/include/spdk/reduce.h
index 73c00691a..f67c484fb 100644
--- a/include/spdk/reduce.h
+++ b/include/spdk/reduce.h
@@ -40,6 +40,8 @@
 
 #include "spdk/uuid.h"
 
+#define REDUCE_MAX_IOVECS	17
+
 /**
  * Describes the parameters of an spdk_reduce_vol.
  */
diff --git a/lib/reduce/reduce.c b/lib/reduce/reduce.c
index 8137a3f3c..7874185ea 100644
--- a/lib/reduce/reduce.c
+++ b/lib/reduce/reduce.c
@@ -87,8 +87,6 @@ struct spdk_reduce_chunk_map {
 	uint64_t		io_unit_index[0];
 };
 
-#define REDUCE_MAX_IOVECS	32
-
 struct spdk_reduce_vol_request {
 	/**
 	 *  Scratch buffer used for uncompressed chunk.  This is used for: