diff --git a/grobid-home/config/grobid-evaluation.yaml b/grobid-home/config/grobid-evaluation.yaml
index 04d9b4a2fc..a0c029436a 100644
--- a/grobid-home/config/grobid-evaluation.yaml
+++ b/grobid-home/config/grobid-evaluation.yaml
@@ -271,7 +271,8 @@ grobid:
           batch_size: 50
 
     - name: "patent-citation"
-      engine: "wapiti"
+      #engine: "wapiti"
+      engine: "delft"
       wapiti:
         # wapiti training parameters, they will be used at training time only
         epsilon: 0.0001
diff --git a/grobid-home/config/grobid-full.yaml b/grobid-home/config/grobid-full.yaml
index ea4244fd34..77bc4168bf 100644
--- a/grobid-home/config/grobid-full.yaml
+++ b/grobid-home/config/grobid-full.yaml
@@ -271,7 +271,8 @@ grobid:
           batch_size: 50
 
     - name: "patent-citation"
-      engine: "wapiti"
+      #engine: "wapiti"
+      engine: "delft"
       wapiti:
         # wapiti training parameters, they will be used at training time only
         epsilon: 0.0001