diff --git a/runtime/index.js b/runtime/index.js
index 1e24999..6d438b7 100644
--- a/runtime/index.js
+++ b/runtime/index.js
@@ -18,8 +18,9 @@ function uid() {
 
 function safeEval(code, inputs, __setEcho__) {
   const create = (code) => {
+    const resultVar = `__recho_v_${uid()}`;
     // Ensure the current echo function is bound for the executing cell.
-    const body = `__setEcho__(echo); const __foo__ = ${code}; const v = __foo__(${inputs.join(",")}); __setEcho__(null); return v;`;
+    const body = `__setEcho__(echo); const __foo__ = ${code}; const ${resultVar} = __foo__(${inputs.join(",")}); __setEcho__(null); return ${resultVar};`;
     const fn = new Function("__setEcho__", ...inputs, body);
     return (...args) => fn(__setEcho__, ...args);
   };
diff --git a/test/js/index-tests.js b/test/js/index-tests.js
index b79a48a..1a02395 100644
--- a/test/js/index-tests.js
+++ b/test/js/index-tests.js
@@ -19,3 +19,4 @@ export {echoInRecursiveFunction} from "./echo-in-recursive-function.js";
 export {echoInBracket} from "./echo-in-bracket.js";
 export {echoAsParams} from "./echo-as-params.js";
 export {echoKey} from "./echo-key.js";
+export {vCollision} from "./v-collision.js";
diff --git a/test/js/index.js b/test/js/index.js
index 447f888..6944d41 100644
--- a/test/js/index.js
+++ b/test/js/index.js
@@ -32,3 +32,4 @@ export {echoInBlock} from "./echo-in-block.js";
 export {echoInAsyncCallback} from "./echo-in-async-callback.js";
 export {echoInBracket} from "./echo-in-bracket.js";
 export {echoAsParams} from "./echo-as-params.js";
+export {vCollision} from "./v-collision.js";
diff --git a/test/js/v-collision.js b/test/js/v-collision.js
new file mode 100644
index 0000000..273ce72
--- /dev/null
+++ b/test/js/v-collision.js
@@ -0,0 +1,4 @@
+export const vCollision = `const v = 123;
+
+echo(v);
+`;
diff --git a/test/output/vCollision.js b/test/output/vCollision.js
new file mode 100644
index 0000000..37ada27
--- /dev/null
+++ b/test/output/vCollision.js
@@ -0,0 +1,4 @@
+const v = 123;
+
+//➜ 123
+echo(v);