diff --git a/cmake/emu/renode.cmake b/cmake/emu/renode.cmake
index 6f1c5923979..49ea3b91eec 100644
--- a/cmake/emu/renode.cmake
+++ b/cmake/emu/renode.cmake
@@ -7,6 +7,7 @@ find_program(
 
 set(RENODE_FLAGS
   --disable-xwt
+  --port -2
   --pid-file renode.pid
   )