diff --git a/metafacture-io/src/main/java/org/metafacture/io/HttpOpener.java b/metafacture-io/src/main/java/org/metafacture/io/HttpOpener.java
index 307a6548..b0f58394 100644
--- a/metafacture-io/src/main/java/org/metafacture/io/HttpOpener.java
+++ b/metafacture-io/src/main/java/org/metafacture/io/HttpOpener.java
@@ -248,7 +248,7 @@ public void process(final String input) {
 
             final HttpURLConnection connection =
                 (HttpURLConnection) new URL(requestUrl).openConnection();
-
+            connection.setRequestProperty("Accept-Encoding", "gzip");
             connection.setRequestMethod(method.name());
             headers.forEach(connection::addRequestProperty);