diff --git a/lib/pairing.js b/lib/pairing.js
index ebedc0015..04a1d818c 100644
--- a/lib/pairing.js
+++ b/lib/pairing.js
@@ -32,7 +32,6 @@ function unpair (deviceId) {
         const q2 = t.none(`DELETE FROM machine_pings WHERE device_id=$1`, [deviceId])
         const q3 = t.none(`DELETE FROM machine_network_heartbeat WHERE device_id=$1`, [deviceId])
         const q4 = t.none(`DELETE FROM machine_network_performance WHERE device_id=$1`, [deviceId])
-        const q5 = t.none(`DELETE FROM machine_diagnostics WHERE device_id=$1`, [deviceId])
         return t.batch([q1, q2, q3, q4, q5])
     })
   )
diff --git a/migrations/1724242113482-drop-last-used-fkey.js b/migrations/1724242113482-drop-last-used-fkey.js
index 3c3b62d78..9459ac518 100644
--- a/migrations/1724242113482-drop-last-used-fkey.js
+++ b/migrations/1724242113482-drop-last-used-fkey.js
@@ -1,10 +1,7 @@
 const db = require('./db')
 
 exports.up = function (next) {
-  db.multi([
-    'ALTER TABLE customers DROP CONSTRAINT customers_last_used_machine_fkey;',
-    'ALTER TABLE machine_diagnostics DROP CONSTRAINT machine_diagnostics_device_id_fkey;'
-  ], next)
+  db.multi(['ALTER TABLE customers DROP CONSTRAINT customers_last_used_machine_fkey;'], next)
 }
 
 exports.down = function (next) {