diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index c15d04bd..8d9d867d 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -409,13 +409,13 @@ cAudioManager::CheckForAnAudioFileOnCD() const
 	return SampleManager.CheckForAnAudioFileOnCD();
 }
 
-uint8
+char
 cAudioManager::GetCDAudioDriveLetter() const
 {
 	if (m_bIsInitialised)
 		return SampleManager.GetCDAudioDriveLetter();
 
-	return 0;
+	return '\0';
 }
 
 bool8
diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
index edf5eb63..4a888788 100644
--- a/src/audio/AudioManager.h
+++ b/src/audio/AudioManager.h
@@ -338,7 +338,7 @@ public:
 
 	void GenerateIntegerRandomNumberTable();
 	char *Get3DProviderName(uint8 id) const;
-	uint8 GetCDAudioDriveLetter() const;
+	char GetCDAudioDriveLetter() const;
 	int8 GetCurrent3DProviderIndex() const;
 	float GetCollisionLoopingRatio(uint32 a, uint32 b, float c) const; // not used
 	float GetCollisionOneShotRatio(int32 a, float b) const;