diff --git a/generators/chipyard/src/main/scala/DigitalTop.scala b/generators/chipyard/src/main/scala/DigitalTop.scala
index 271f9478..b8390920 100644
--- a/generators/chipyard/src/main/scala/DigitalTop.scala
+++ b/generators/chipyard/src/main/scala/DigitalTop.scala
@@ -32,7 +32,7 @@ class DigitalTop(implicit p: Parameters) extends ChipyardSystem
   with chipyard.example.CanHavePeripheryStreamingPassthrough // Enables optionally adding the DSPTools streaming-passthrough example widget
   with nvidia.blocks.dla.CanHavePeripheryNVDLA // Enables optionally having an NVDLA
   with chipyard.clocking.HasChipyardPRCI // Use Chipyard reset/clock distribution
-  with FFTGenerator.HasPeripheryFFT
+  with fftgenerator.CanHavePeripheryFFT
 {
   override lazy val module = new DigitalTopModule(this)
 }
diff --git a/generators/chipyard/src/main/scala/config/RocketConfigs.scala b/generators/chipyard/src/main/scala/config/RocketConfigs.scala
index f602f9e2..88b961a1 100644
--- a/generators/chipyard/src/main/scala/config/RocketConfigs.scala
+++ b/generators/chipyard/src/main/scala/config/RocketConfigs.scala
@@ -22,9 +22,9 @@ class TinyRocketConfig extends Config(
   new chipyard.config.AbstractConfig)
 
 class RocketWithFFT extends Config(
-  new FFTGenerator.WithFFTNumPoints(8) ++
-  new FFTGenerator.WithFFTBaseAddr(0x2000) ++
-  new FFTGenerator.WithFFTGenerator ++
+  new fftgenerator.WithFFTNumPoints(8) ++
+  new fftgenerator.WithFFTBaseAddr(0x2000) ++
+  new fftgenerator.WithFFTGenerator ++
   new RocketConfig)
 
 class HwachaRocketConfig extends Config(