diff --git a/src/main/scala/vexriscv/ip/DataCache.scala b/src/main/scala/vexriscv/ip/DataCache.scala
index 8c1ce61..72de343 100644
--- a/src/main/scala/vexriscv/ip/DataCache.scala
+++ b/src/main/scala/vexriscv/ip/DataCache.scala
@@ -287,7 +287,7 @@ case class DataCacheMemBus(p : DataCacheConfig) extends Bundle with IMasterSlave
     axi.sharedCmd.write := cmdStage.wr
     axi.sharedCmd.prot := "010"
     axi.sharedCmd.cache := "1111"
-    axi.sharedCmd.size := cmd.size.max(log2Up(p.memDataBytes))
+    axi.sharedCmd.size := log2Up(p.memDataBytes)
     axi.sharedCmd.addr := cmdStage.address
     axi.sharedCmd.len  := cmd.beatCountMinusOne.resized