diff --git a/src/plugins/platforms/wasm/qtloader.js b/src/plugins/platforms/wasm/qtloader.js
index 14a22fc0f1c..3a8b7d7f5ca 100644
--- a/src/plugins/platforms/wasm/qtloader.js
+++ b/src/plugins/platforms/wasm/qtloader.js
@@ -416,7 +416,7 @@ function QtLoader(config)
         self.moduleConfig.preRun.push(function(module) {
             // Set environment variables
             for (var [key, value] of Object.entries(config.environment)) {
-                ENV[key.toUpperCase()] = value;
+                module.ENV[key.toUpperCase()] = value;
             }
             // Propagate Qt module properties
             module.qtCanvasElements = self.qtCanvasElements;