diff --git a/test/functional/rpc_scantxoutset.py b/test/functional/rpc_scantxoutset.py
index da0d94e36ed3..778fedc24b36 100755
--- a/test/functional/rpc_scantxoutset.py
+++ b/test/functional/rpc_scantxoutset.py
@@ -126,5 +126,8 @@ def run_test(self):
         # Check that second arg is needed for start
         assert_raises_rpc_error(-1, "scanobjects argument is required for the start action", self.nodes[0].scantxoutset, "start")
 
+        # Check that invalid command give error
+        assert_raises_rpc_error(-8, "Invalid command", self.nodes[0].scantxoutset, "invalid_command")
+
 if __name__ == '__main__':
     ScantxoutsetTest().main()