diff --git a/api/server/src/main/java/org/softwareheritage/graph/SwhPath.java b/api/server/src/main/java/org/softwareheritage/graph/SwhPath.java
index 3cd002a..4b529b9 100644
--- a/api/server/src/main/java/org/softwareheritage/graph/SwhPath.java
+++ b/api/server/src/main/java/org/softwareheritage/graph/SwhPath.java
@@ -1,69 +1,76 @@
 package org.softwareheritage.graph;
 
 import java.util.ArrayList;
 
+import com.fasterxml.jackson.annotation.JsonValue;
+
 import org.softwareheritage.graph.SwhId;
 
 public class SwhPath {
   ArrayList<SwhId> path;
 
   public SwhPath() {
     this.path = new ArrayList<SwhId>();
   }
 
   public SwhPath(String ...swhIds) {
     this();
     for (String swhId : swhIds) {
       add(new SwhId(swhId));
     }
   }
 
   public SwhPath(SwhId ...swhIds) {
     this();
     for (SwhId swhId : swhIds) {
       add(swhId);
     }
   }
 
+  @JsonValue
+  public ArrayList<SwhId> getPath() {
+    return path;
+  }
+
   public void add(SwhId swhId) {
     path.add(swhId);
   }
 
   public SwhId get(int index) {
     return path.get(index);
   }
 
   public int size() {
     return path.size();
   }
 
   @Override
   public boolean equals(Object otherObj) {
     if (otherObj == this) return true;
     if (! (otherObj instanceof SwhPath)) return false;
 
     SwhPath other = (SwhPath) otherObj;
     if (size() != other.size()) {
       return false;
     }
 
     for (int i = 0; i < size(); i++) {
       SwhId thisId = get(i);
       SwhId otherId = other.get(i);
       if (! thisId.equals(otherId)) {
         return false;
       }
     }
 
     return true;
   }
 
   @Override
   public String toString() {
     String str = new String();
     for (SwhId swhId : path) {
       str += swhId + "/";
     }
     return str;
   }
 }