1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/multibindings/src/com/google/inject/multibindings/MapKey.java b/extensions/multibindings/src/com/google/inject/multibindings/MapKey.java
index bcb6a3b8..2fc3374d 100644
--- a/extensions/multibindings/src/com/google/inject/multibindings/MapKey.java
+++ b/extensions/multibindings/src/com/google/inject/multibindings/MapKey.java
@@ -54,5 +54,5 @@ public @interface MapKey {
    * instances will be the keys. If {@code unwrapValue} is true, the value() type of key type
    * annotation will be the key type for injected map and the value instances will be the keys.
    */
-  boolean unwrapValue();
+  boolean unwrapValue() default true;
 }