diff --git a/src/main/scala/rocket/ICache.scala b/src/main/scala/rocket/ICache.scala
index bb8f3824..bba36801 100644
--- a/src/main/scala/rocket/ICache.scala
+++ b/src/main/scala/rocket/ICache.scala
@@ -47,6 +47,7 @@ class ICache(val latency: Int, val hartid: Int)(implicit p: Parameters) extends
         regionType      = RegionType.UNCACHED,
         executable      = true,
         supportsPutFull = TransferSizes(1, wordBytes),
+        supportsPutPartial = TransferSizes(1, wordBytes),
         supportsGet     = TransferSizes(1, wordBytes),
         fifoId          = Some(0))), // requests handled in FIFO order
       beatBytes = wordBytes,