diff --git a/LEGO1/omni/include/mxsoundmanager.h b/LEGO1/omni/include/mxsoundmanager.h
index 2e20a74b..092a5671 100644
--- a/LEGO1/omni/include/mxsoundmanager.h
+++ b/LEGO1/omni/include/mxsoundmanager.h
@@ -34,7 +34,7 @@ class MxSoundManager : public MxAudioManager {
 	// [library:audio]
 	// Upscaling everything to 44.1KHz, since we have various sample rates throughout the game.
 	// Not sure how DirectSound handles this when different buffers have different rates.
-	const ma_uint32 sampleRate = 44100;
+	static const MxU32 sampleRate = 44100;
 
 	static void SDLCALL
 	AudioStreamCallback(void* p_userdata, SDL_AudioStream* p_stream, int p_additionalAmount, int p_totalAmount);
diff --git a/LEGO1/omni/include/mxwavepresenter.h b/LEGO1/omni/include/mxwavepresenter.h
index 50f2ca74..63b8b053 100644
--- a/LEGO1/omni/include/mxwavepresenter.h
+++ b/LEGO1/omni/include/mxwavepresenter.h
@@ -4,7 +4,6 @@
 #include "decomp.h"
 #include "mxsoundpresenter.h"
 
-#include <dsound.h>
 #include <miniaudio.h>
 
 // VTABLE: LEGO1 0x100d49a8
@@ -80,13 +79,13 @@ class MxWavePresenter : public MxSoundPresenter {
 	MxBool WriteToSoundBuffer(void* p_audioPtr, MxU32 p_length);
 
 	// [library:audio] One chunk has up to 1 second worth of frames
-	const MxU32 millisecondsPerChunk = 1000;
+	static const MxU32 millisecondsPerChunk = 1000;
 
 	// [library:audio] Store up to 2 chunks worth of frames (same as in original game)
-	const MxU32 rbSizeInMilliseconds = millisecondsPerChunk * 2;
+	static const MxU32 rbSizeInMilliseconds = millisecondsPerChunk * 2;
 
 	// [library:audio] WAVE_FORMAT_PCM (audio in .SI files only used this format)
-	const ma_uint32 supportedFormatTag = 1;
+	static const MxU32 supportedFormatTag = 1;
 
 	WaveFormat* m_waveFormat; // 0x54
 	ma_pcm_rb m_rb;