diff --git a/experiments/modern/src/debugger/index.js b/experiments/modern/src/debugger/index.js
index cb0a00d9..11aa1ba7 100644
--- a/experiments/modern/src/debugger/index.js
+++ b/experiments/modern/src/debugger/index.js
@@ -163,6 +163,11 @@ function Debugger({ maki }) {
     if (!paused) next();
   }, [paused]);
 
+  // When we get a new generator, immediatly take the first step.
+  React.useEffect(() => {
+    next();
+  }, [gen]);
+
   React.useEffect(() => {
     function handler(e) {
       switch (e.key) {