diff --git a/generators/chipyard/src/main/scala/config/MMIOAcceleratorConfigs.scala b/generators/chipyard/src/main/scala/config/MMIOAcceleratorConfigs.scala
index 8d6f1063..fc6466ce 100644
--- a/generators/chipyard/src/main/scala/config/MMIOAcceleratorConfigs.scala
+++ b/generators/chipyard/src/main/scala/config/MMIOAcceleratorConfigs.scala
@@ -59,6 +59,7 @@ class LargeNVDLARocketConfig extends Config(
   new chipyard.config.AbstractConfig)
 
 class ManyMMIOAcceleratorRocketConfig extends Config(
+  new chipyard.example.WithInitZero(0x88000000L, 0x1000L) ++   // add InitZero
   new chipyard.harness.WithDontTouchChipTopPorts(false) ++   // TODO: hack around dontTouch not working in SFC
   new fftgenerator.WithFFTGenerator(numPoints=8, width=16, decPt=8) ++ // add 8-point mmio fft at the default addr (0x2400) with 16bit fixed-point numbers.
   new chipyard.example.WithStreamingPassthrough ++          // use top with tilelink-controlled streaming passthrough
diff --git a/generators/chipyard/src/main/scala/example/InitZero.scala b/generators/chipyard/src/main/scala/example/InitZero.scala
index 6bf72343..f39661af 100644
--- a/generators/chipyard/src/main/scala/example/InitZero.scala
+++ b/generators/chipyard/src/main/scala/example/InitZero.scala
@@ -61,8 +61,8 @@ trait CanHavePeripheryInitZero { this: BaseSubsystem =>
   implicit val p: Parameters
 
   p(InitZeroKey) .map { k =>
-    val initZero = LazyModule(new InitZero()(p))
     val fbus = locateTLBusWrapper(FBUS)
+    val initZero = fbus { LazyModule(new InitZero()(p)) }
     fbus.coupleFrom("init-zero") { _ := initZero.node }
   }
 }