diff --git a/crates/red_knot_python_semantic/mdtest.py b/crates/red_knot_python_semantic/mdtest.py
index 6dabed368e..a82edee782 100644
--- a/crates/red_knot_python_semantic/mdtest.py
+++ b/crates/red_knot_python_semantic/mdtest.py
@@ -155,6 +155,7 @@ class MDTestRunner:
 
     def watch(self) -> Never:
         self._recompile_tests("Compiling tests...", message_on_success=False)
+        self._run_mdtest()
         self.console.print("[dim]Ready to watch for changes...[/dim]")
 
         for changes in watch(CRATE_ROOT):