diff --git a/Plugins/Opus/Opus/OpusDecoder.m b/Plugins/Opus/Opus/OpusDecoder.m
index 615dfab18..ea83f38e0 100644
--- a/Plugins/Opus/Opus/OpusDecoder.m
+++ b/Plugins/Opus/Opus/OpusDecoder.m
@@ -180,8 +180,10 @@ static void setDictionary(NSMutableDictionary *dict, NSString *tag, NSString *va
 			metaDict = _metaDict;
 			albumArt = _albumArt;
 
-			[self willChangeValueForKey:@"metadata"];
-			[self didChangeValueForKey:@"metadata"];
+			if(![source seekable]) {
+				[self willChangeValueForKey:@"metadata"];
+				[self didChangeValueForKey:@"metadata"];
+			}
 		}
 	}
 }
diff --git a/Plugins/Vorbis/VorbisDecoder.m b/Plugins/Vorbis/VorbisDecoder.m
index 6b46c3da4..c73c53e31 100644
--- a/Plugins/Vorbis/VorbisDecoder.m
+++ b/Plugins/Vorbis/VorbisDecoder.m
@@ -157,8 +157,10 @@ static void setDictionary(NSMutableDictionary *dict, NSString *tag, NSString *va
 			metaDict = _metaDict;
 			albumArt = _albumArt;
 
-			[self willChangeValueForKey:@"metadata"];
-			[self didChangeValueForKey:@"metadata"];
+			if(![source seekable]) {
+				[self willChangeValueForKey:@"metadata"];
+				[self didChangeValueForKey:@"metadata"];
+			}
 		}
 	}
 }