diff --git a/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java b/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java
index b15f283..791909c 100644
--- a/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java
+++ b/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java
@@ -30,6 +30,7 @@ public enum DependencyScope
     COMPILE( Artifact.SCOPE_COMPILE ),
     COMPILE_PLUS_RUNTIME( Artifact.SCOPE_COMPILE_PLUS_RUNTIME ),
     RUNTIME( Artifact.SCOPE_RUNTIME ),
+    SCOPE_RUNTIME_PLUS_SYSTEM( Artifact.SCOPE_RUNTIME_PLUS_SYSTEM ),
     TEST( Artifact.SCOPE_TEST );
 
     private final String id;