diff --git a/node_modules/vitest-browser-react/dist/pure-DZz-eKGg.js b/node_modules/vitest-browser-react/dist/pure-DZz-eKGg.js
index a36ee72..08500f0 100644
--- a/node_modules/vitest-browser-react/dist/pure-DZz-eKGg.js
+++ b/node_modules/vitest-browser-react/dist/pure-DZz-eKGg.js
@@ -12,7 +12,7 @@ function ensureTestIdAttribute(element) {
 }
 let activeActs = 0;
 function setActEnvironment(env) {
-	globalThis.IS_REACT_ACT_ENVIRONMENT = env;
+	if (env) globalThis.IS_REACT_ACT_ENVIRONMENT = env;
 }
 function updateActEnvironment() {
 	setActEnvironment(activeActs > 0);