diff --git a/Audio/Plugin.h b/Audio/Plugin.h
index 0db7ec560..c29ac3a90 100644
--- a/Audio/Plugin.h
+++ b/Audio/Plugin.h
@@ -98,3 +98,10 @@
 
 - (int)putMetadataInURL:(NSURL *)url;
 @end
+
+static NSString *guess_encoding_of_string(const char *input) {
+	NSString *ret = @"";
+	NSData *stringData = [NSData dataWithBytes:input length:strlen(input)];
+	[NSString stringEncodingForData:stringData encodingOptions:nil convertedString:&ret usedLossyConversion:nil];
+	return ret;
+}
diff --git a/Plugins/HTTPSource/HTTPSource.m b/Plugins/HTTPSource/HTTPSource.m
index 87b56384a..850ea9b54 100644
--- a/Plugins/HTTPSource/HTTPSource.m
+++ b/Plugins/HTTPSource/HTTPSource.m
@@ -59,13 +59,6 @@ static size_t http_curl_write_wrapper(HTTPSource *fp, void *ptr, size_t size) {
 	return size - avail;
 }
 
-static NSString *guess_encoding_of_string(const char *input) {
-	NSString *ret = @"";
-	NSData *stringData = [NSData dataWithBytes:input length:strlen(input)];
-	[NSString stringEncodingForData:stringData encodingOptions:nil convertedString:&ret usedLossyConversion:nil];
-	return ret;
-}
-
 static int http_parse_shoutcast_meta(HTTPSource *fp, const char *meta, size_t size) {
 	//    DLog (@"reading %d bytes of metadata\n", size);
 	DLog(@"%s", meta);