diff --git a/include/rdma/ib_fmr_pool.h b/include/rdma/ib_fmr_pool.h
index 86b7e93..4ace54c 100644
--- a/include/rdma/ib_fmr_pool.h
+++ b/include/rdma/ib_fmr_pool.h
@@ -43,6 +43,7 @@
 /**
  * struct ib_fmr_pool_param - Parameters for creating FMR pool
  * @max_pages_per_fmr:Maximum number of pages per map request.
+ * @page_shift: Log2 of sizeof "pages" mapped by this fmr
  * @access:Access flags for FMRs in pool.
  * @pool_size:Number of FMRs to allocate for pool.
  * @dirty_watermark:Flush is triggered when @dirty_watermark dirty
@@ -55,6 +56,7 @@
  */
 struct ib_fmr_pool_param {
 	int                     max_pages_per_fmr;
+	int                     page_shift;
 	enum ib_access_flags    access;
 	int                     pool_size;
 	int                     dirty_watermark;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 1d31c8c..61a4390 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -651,7 +651,7 @@
 struct ib_fmr_attr {
 	int	max_pages;
 	int	max_maps;
-	u8	page_size;
+	u8	page_shift;
 };
 
 struct ib_ucontext {