diff --git a/src/main/java/org/graylog2/indexer/Mapping.java b/src/main/java/org/graylog2/indexer/Mapping.java
index 3b7f22d653d7..0d63b20c0407 100644
--- a/src/main/java/org/graylog2/indexer/Mapping.java
+++ b/src/main/java/org/graylog2/indexer/Mapping.java
@@ -89,6 +89,7 @@ public static Map analyzedString() {
         Map type = new HashMap();
         type.put("index", "analyzed");
         type.put("type", "string");
+        type.put("analyzer", "whitespace");
         
         return type;
     }