diff --git a/stuttgart.json b/stuttgart.json
index b4b99cc..1975b6f 100644
--- a/stuttgart.json
+++ b/stuttgart.json
@@ -37,13 +37,13 @@
           "type": "suservo",
           "sampler_ports": [3, 4],
           "urukul0_ports": [5, 6],
-          "urukul1_ports": [7, 8],
+          "urukul1_ports": [9, 10],
           "clk_sel": 2
         },
         {
           "type": "urukul",
           "hw_rev": "v1.5",
-          "ports": [9, 10],
+          "ports": [7, 8],
           "clk_sel": 2,
           "synchronization": true
         },