diff --git a/test/AD4630_24Tests.m b/test/AD4630_24Tests.m
index b06a676..ed2b9ec 100644
--- a/test/AD4630_24Tests.m
+++ b/test/AD4630_24Tests.m
@@ -10,7 +10,7 @@
     methods(TestClassSetup)
         % Check hardware connected
         function CheckForHardware(testCase)
-            Device = @()adi.AD4630_24.Rx;
+            Device = @()adi.AD4630_24.Rx('uri',testCase.uri);
             testCase.CheckDevice('ip',Device,testCase.uri(4:end),false);
         end
     end
diff --git a/test/AD7768Tests.m b/test/AD7768Tests.m
index 1e79617..e3e2944 100644
--- a/test/AD7768Tests.m
+++ b/test/AD7768Tests.m
@@ -18,7 +18,8 @@ function CheckForHardware(testCase)
     methods (Test)
         
         function testAD7768Smoke(testCase)
-            adc = adi.AD7768.Rx('uri',testCase.uri);
+            adc = adi.AD7768.Rx();
+            adc.uri = testCase.uri;
             data = adc();
             adc.release();
             testCase.assertTrue(sum(abs(double(data)))>0);