diff --git a/client/src/main/java/io/split/client/HttpSplitChangeFetcher.java b/client/src/main/java/io/split/client/HttpSplitChangeFetcher.java
index ea18a6d65..bf91d23d2 100644
--- a/client/src/main/java/io/split/client/HttpSplitChangeFetcher.java
+++ b/client/src/main/java/io/split/client/HttpSplitChangeFetcher.java
@@ -14,9 +14,11 @@
 import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
 import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
 import org.apache.hc.core5.http.HttpException;
+import org.apache.hc.core5.http.HttpHeaders;
 import org.apache.hc.core5.http.HttpStatus;
 import org.apache.hc.core5.http.Header;
 import org.apache.hc.core5.http.io.entity.EntityUtils;
+import org.apache.hc.core5.http.message.BasicHeader;
 import org.apache.hc.core5.net.URIBuilder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -25,6 +27,8 @@
 import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.stream.Collectors;
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -93,8 +97,7 @@ public SplitChange fetch(long since, FetchOptions options) {
             }
 
             response = _client.execute(request);
-            options.handleResponseHeaders(Arrays.stream(response.getHeaders())
-                    .collect(Collectors.toMap(Header::getName, Header::getValue)));
+            options.handleResponseHeaders(readResponseHeaders(response.getHeaders()));
 
             int statusCode = response.getCode();
 
@@ -127,4 +130,18 @@ public SplitChange fetch(long since, FetchOptions options) {
     URI getTarget() {
         return _target;
     }
+
+    private Map<String, String> readResponseHeaders(Header[] headers) {
+        Map<String, String> toReturn = new HashMap<>();
+        for (Header header : headers) {
+            if (toReturn.containsKey(header.getName())) {
+                toReturn.put(header.getName(), toReturn.get(header.getName()) + "," + header.getValue());
+                continue;
+            }
+
+            toReturn.put(header.getName(), header.getValue());
+        }
+
+        return toReturn;
+    }
 }
\ No newline at end of file
diff --git a/client/src/test/java/io/split/TestHelper.java b/client/src/test/java/io/split/TestHelper.java
index 39b973c78..449a692f6 100644
--- a/client/src/test/java/io/split/TestHelper.java
+++ b/client/src/test/java/io/split/TestHelper.java
@@ -5,6 +5,8 @@
 import org.apache.hc.core5.http.ClassicHttpResponse;
 import org.apache.hc.core5.http.Header;
 import org.apache.hc.core5.http.HttpEntity;
+import org.apache.hc.core5.http.HttpHeaders;
+import org.apache.hc.core5.http.message.BasicHeader;
 import org.mockito.Mockito;
 
 import java.io.IOException;
@@ -19,7 +21,10 @@ public static CloseableHttpClient mockHttpClient(String jsonName, int httpStatus
         ClassicHttpResponse httpResponseMock = Mockito.mock(ClassicHttpResponse.class);
         Mockito.when(httpResponseMock.getEntity()).thenReturn(entityMock);
         Mockito.when(httpResponseMock.getCode()).thenReturn(httpStatus);
-        Mockito.when(httpResponseMock.getHeaders()).thenReturn(new Header[0]);
+        Header[] headers = new Header[2];
+        headers[0] = new BasicHeader(HttpHeaders.VIA, "HTTP/1.1 m_proxy_rio1");
+        headers[1] = new BasicHeader(HttpHeaders.VIA, "HTTP/1.1 s_proxy_rio1");
+        Mockito.when(httpResponseMock.getHeaders()).thenReturn(headers);
         CloseableHttpClient httpClientMock = Mockito.mock(CloseableHttpClient.class);
         Mockito.when(httpClientMock.execute(Mockito.anyObject())).thenReturn(classicResponseToCloseableMock(httpResponseMock));