diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/IConfiguration.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/IConfiguration.java
index 135a30d50c1..6c31865e1c7 100644
--- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/IConfiguration.java
+++ b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/IConfiguration.java
@@ -17,6 +17,7 @@ import org.eclipse.core.resources.IResource;
  * Represents a build configuration.
  * 
  * @author Doug Schaefer
+ * @since 5.1
  */
 public interface IConfiguration {