diff --git a/reactos/include/ndk/arch/ketypes.h b/reactos/include/ndk/arch/ketypes.h
index d60a4d4f18e..f6bfc05f786 100644
--- a/reactos/include/ndk/arch/ketypes.h
+++ b/reactos/include/ndk/arch/ketypes.h
@@ -24,6 +24,8 @@ Author:
 //
 #ifdef _M_IX86
 #include <i386/ketypes.h>
+#elif defined(_M_PPC)
+#include <powerpc/ketypes.h>
 #else
 #error "Unknown processor"
 #endif
diff --git a/reactos/include/ndk/arch/mmtypes.h b/reactos/include/ndk/arch/mmtypes.h
index 632cbfbda82..5e9c449feed 100644
--- a/reactos/include/ndk/arch/mmtypes.h
+++ b/reactos/include/ndk/arch/mmtypes.h
@@ -24,6 +24,8 @@ Author:
 //
 #ifdef _M_IX86
 #include <i386/mmtypes.h>
+#elif defined(_M_PPC)
+#include <powerpc/mmtypes.h>
 #else
 #error "Unknown processor"
 #endif