diff --git a/pic-sure-resources/pic-sure-passthrough-resource/src/test/java/edu/harvard/hms/dbmi/avillach/resource/passthru/PassThroughResourceRSTest.java b/pic-sure-resources/pic-sure-passthrough-resource/src/test/java/edu/harvard/hms/dbmi/avillach/resource/passthru/PassThroughResourceRSTest.java
index 014f9be6..cdee4cec 100644
--- a/pic-sure-resources/pic-sure-passthrough-resource/src/test/java/edu/harvard/hms/dbmi/avillach/resource/passthru/PassThroughResourceRSTest.java
+++ b/pic-sure-resources/pic-sure-passthrough-resource/src/test/java/edu/harvard/hms/dbmi/avillach/resource/passthru/PassThroughResourceRSTest.java
@@ -139,7 +139,7 @@ void testQueryResult() throws Exception {
         when(httpResponse.getStatusLine()).thenReturn(statusLine);
         when(httpResponse.getEntity()).thenReturn(httpResponseEntity);
         when(httpClient.retrievePostResponse(anyString(), any(Header[].class), anyString())).thenReturn(httpResponse);
-        when(httpClient.readObjectFromResponse(any(HttpResponse.class), StandardCharsets.UTF_8)).thenReturn("4");
+        when(httpClient.readObjectFromResponse(any(HttpResponse.class), StandardCharsets.ISO_8859_1)).thenReturn("4");
 
         assertThrows(ProtocolException.class, () -> {
             resource.queryResult("", null);