diff --git a/Audio/ThirdParty/CoreAudioUtils/CoreAudioUtils.m b/Audio/ThirdParty/CoreAudioUtils/CoreAudioUtils.m
index 9a697cf9a..dcbd36f1c 100644
--- a/Audio/ThirdParty/CoreAudioUtils/CoreAudioUtils.m
+++ b/Audio/ThirdParty/CoreAudioUtils/CoreAudioUtils.m
@@ -56,7 +56,7 @@ AudioStreamBasicDescription propertiesToASBD(NSDictionary *properties)
 		asbd.mFormatFlags |= kLinearPCMFormatFlagIsAlignedHigh;
 	}
 	
-	if (isFloat == NO && [[properties objectForKey:@"unsigned"] boolValue] == NO) {
+	if (isFloat == NO && [[properties objectForKey:@"Unsigned"] boolValue] == NO) {
 		asbd.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger;
 	}
     
diff --git a/Playlist/PlaylistEntry.h b/Playlist/PlaylistEntry.h
index cbaec9c73..6d7df89af 100644
--- a/Playlist/PlaylistEntry.h
+++ b/Playlist/PlaylistEntry.h
@@ -46,6 +46,7 @@
 	int channels;
 	int bitsPerSample;
     BOOL floatingPoint;
+    BOOL Unsigned;
 	float sampleRate;
 	
 	NSString *endian;
@@ -102,6 +103,7 @@
 @property int channels;
 @property int bitsPerSample;
 @property BOOL floatingPoint;
+@property BOOL Unsigned;
 @property float sampleRate;
 
 @property float replayGainAlbumGain;
diff --git a/Playlist/PlaylistEntry.m b/Playlist/PlaylistEntry.m
index a530caba8..448d21116 100644
--- a/Playlist/PlaylistEntry.m
+++ b/Playlist/PlaylistEntry.m
@@ -39,6 +39,7 @@
 @synthesize channels;
 @synthesize bitsPerSample;
 @synthesize floatingPoint;
+@synthesize Unsigned;
 @synthesize sampleRate;
 
 @synthesize replayGainAlbumGain;
diff --git a/Plugins/FFMPEG/FFMPEGDecoder.m b/Plugins/FFMPEG/FFMPEGDecoder.m
index fd84eb86e..7bbb41395 100644
--- a/Plugins/FFMPEG/FFMPEGDecoder.m
+++ b/Plugins/FFMPEG/FFMPEGDecoder.m
@@ -281,7 +281,7 @@ int lockmgr_callback(void ** mutex, enum AVLockOp op)
 	return [NSDictionary dictionaryWithObjectsAndKeys:
 			[NSNumber numberWithInt:channels], @"channels",
 			[NSNumber numberWithInt:bitsPerSample], @"bitsPerSample",
-            [NSNumber numberWithBool:(bitsPerSample == 8)], @"unsigned",
+            [NSNumber numberWithBool:(bitsPerSample == 8)], @"Unsigned",
 			[NSNumber numberWithFloat:frequency], @"sampleRate",
             [NSNumber numberWithBool:floatingPoint], @"floatingPoint",
 			[NSNumber numberWithDouble:totalFrames], @"totalFrames",