diff --git a/src/apu.h b/src/apu.h
index aba98d2..20ab650 100644
--- a/src/apu.h
+++ b/src/apu.h
@@ -7,7 +7,7 @@
 
 #pragma once
 
-#include "processingunit.h"
+#include "processing-unit.h"
 
 class APU : public ProcessingUnit {
 public:
diff --git a/src/cpu.h b/src/cpu.h
index 1f94e0c..5241a9a 100644
--- a/src/cpu.h
+++ b/src/cpu.h
@@ -7,7 +7,7 @@
 
 #pragma once
 
-#include "processingunit.h"
+#include "processing-unit.h"
 
 class CPU final : public ProcessingUnit {
 public:
diff --git a/src/ppu.h b/src/ppu.h
index 9d7a0d2..b236e8e 100644
--- a/src/ppu.h
+++ b/src/ppu.h
@@ -7,7 +7,7 @@
 
 #pragma once
 
-#include "processingunit.h"
+#include "processing-unit.h"
 
 class PPU final : public ProcessingUnit {
 public: