diff --git a/src/com/fsck/k9/mail/store/LocalStore.java b/src/com/fsck/k9/mail/store/LocalStore.java
index 38300b2ff..3f7279f8a 100644
--- a/src/com/fsck/k9/mail/store/LocalStore.java
+++ b/src/com/fsck/k9/mail/store/LocalStore.java
@@ -81,7 +81,7 @@ public class LocalStore extends Store implements Serializable {
 
     private static final Set<String> HEADERS_TO_SAVE;
     static {
-        Set<String> set = new HashSet();
+        Set<String> set = new HashSet<String>();
         set.add(K9.IDENTITY_HEADER);
         set.add("To");
         set.add("Cc");