diff --git a/matsim/src/main/java/org/matsim/api/core/v01/population/BasicPlan.java b/matsim/src/main/java/org/matsim/api/core/v01/population/BasicPlan.java
index c8263d2264a..5bcf541d5a3 100644
--- a/matsim/src/main/java/org/matsim/api/core/v01/population/BasicPlan.java
+++ b/matsim/src/main/java/org/matsim/api/core/v01/population/BasicPlan.java
@@ -21,11 +21,11 @@
 
  package org.matsim.api.core.v01.population;
 
-import org.matsim.core.replanning.selectors.GenericWorstPlanForRemovalSelector;
-
 public interface BasicPlan {
 
-	void setScore( Double score );
+	String UNDEFINED_PLAN_TYPE = "undefined";
+
+	void setScore(Double score );
 
 	Double getScore();
 
@@ -33,7 +33,7 @@ public interface BasicPlan {
 	 * Plan type, which may be used to ensure there is at least one plan of a certain type.
 	 */
 	default String getType() {
-		return GenericWorstPlanForRemovalSelector.UNDEFINED_TYPE;
+		return UNDEFINED_PLAN_TYPE;
 	}
-	
+
 }
diff --git a/matsim/src/main/java/org/matsim/core/replanning/selectors/GenericWorstPlanForRemovalSelector.java b/matsim/src/main/java/org/matsim/core/replanning/selectors/GenericWorstPlanForRemovalSelector.java
index 49d4971caa1..61e2df24a2e 100644
--- a/matsim/src/main/java/org/matsim/core/replanning/selectors/GenericWorstPlanForRemovalSelector.java
+++ b/matsim/src/main/java/org/matsim/core/replanning/selectors/GenericWorstPlanForRemovalSelector.java
@@ -28,6 +28,8 @@
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
+import static org.matsim.api.core.v01.population.BasicPlan.UNDEFINED_PLAN_TYPE;
+
 /**
  * <p>Selects the worst plan of a person (most likely for removal), but respects
  * the set plan types in a way the no plan is selected that is the last one of
@@ -41,8 +43,6 @@
  */
 public class GenericWorstPlanForRemovalSelector<T extends BasicPlan, I> implements PlanSelector<T, I> {
 
-	public static final String UNDEFINED_TYPE = "undefined";
-
 	@Override
 	public T selectPlan(HasPlansAndId<T, I> person) {
 
@@ -53,7 +53,7 @@ public T selectPlan(HasPlansAndId<T, I> person) {
 		for (T plan : person.getPlans()) {
 			String type = plan.getType();
 			if ( type==null ) {
-				type = UNDEFINED_TYPE ;
+				type = UNDEFINED_PLAN_TYPE;
 			}
 			typeCounts.merge( type, 1, ( a, b ) -> a + b );
 		}
@@ -64,7 +64,7 @@ public T selectPlan(HasPlansAndId<T, I> person) {
 
 			String type = plan.getType();
 			if ( type==null ) {
-				type = UNDEFINED_TYPE;
+				type = UNDEFINED_PLAN_TYPE;
 			}
 			if ( typeCounts.get( type ) > 1) {
 				// (if we have more than one plan of the same type:)