HTTPClient (commons-io-1.3.2) - Invalid header: charset=iso-8859-1

I'm making a HTTPGet request (Android app) and get this error. What does it mean and how do I fix it? Thanks!

E/Client  ( 3778): Caused by: org.apache.http.ProtocolException: Invalid header: charset=iso-8859-1
E/Client  ( 3778):      at org.apache.http.impl.io.AbstractMessageParser.parseHeaders(AbstractMessageParser.java:162)
E/Client  ( 3778):      at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:178)
E/Client  ( 3778):      at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:179)
E/Client  ( 3778):      at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:235)
E/Client  ( 3778):      at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:259)
E/Client  ( 3778):      at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:279)
E/Client  ( 3778):      at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:121)
E/开发者_开发百科Client  ( 3778):      at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:421)
E/Client  ( 3778):      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
E/Client  ( 3778):      ... 6 more

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I don't see charset listed as a request header, Accept-Charset is listed.

See HTTP Request headers