diff --git a/org.eclipse.jdt.annotation/src/org/eclipse/jdt/annotation/NonNullByDefault.java b/org.eclipse.jdt.annotation/src/org/eclipse/jdt/annotation/NonNullByDefault.java
index 77c6c8f7b24..359bfa72935 100644
--- a/org.eclipse.jdt.annotation/src/org/eclipse/jdt/annotation/NonNullByDefault.java
+++ b/org.eclipse.jdt.annotation/src/org/eclipse/jdt/annotation/NonNullByDefault.java
@@ -47,7 +47,7 @@
* Canceling a default
* In particular, specifying an empty value ({}) for the {@link #value}
* attribute has the effect of canceling any null defaults that might be defined for any
- * enclosing scope.
+ * enclosing scope. The exact syntax is @NonNullByDefault({}).
*
*
* Note that for applying an annotation to a package, a file by the name