diff --git a/programs/develop/webpack/plugin-compilation/env.ts b/programs/develop/webpack/plugin-compilation/env.ts
index d5882849..e732f55e 100644
--- a/programs/develop/webpack/plugin-compilation/env.ts
+++ b/programs/develop/webpack/plugin-compilation/env.ts
@@ -67,15 +67,14 @@ export class EnvPlugin {
 
     // Ensure default environment variables are always available:
     // - EXTENSION_PUBLIC_BROWSER
-    // - EXTENSION_PUBLIC_ENV_MODE
+    // - EXTENSION_PUBLIC_MODE
     filteredEnvVars['process.env.EXTENSION_PUBLIC_BROWSER'] = JSON.stringify(
       this.browser
     )
     filteredEnvVars['import.meta.env.EXTENSION_PUBLIC_BROWSER'] =
       JSON.stringify(this.browser)
-    filteredEnvVars['process.env.EXTENSION_PUBLIC_ENV_MODE'] =
-      JSON.stringify(mode)
-    filteredEnvVars['import.meta.env.EXTENSION_PUBLIC_ENV_MODE'] =
+    filteredEnvVars['process.env.EXTENSION_PUBLIC_MODE'] = JSON.stringify(mode)
+    filteredEnvVars['import.meta.env.EXTENSION_PUBLIC_MODE'] =
       JSON.stringify(mode)
 
     // Apply DefinePlugin to expose filtered variables
@@ -101,7 +100,7 @@ export class EnvPlugin {
 
                 // Replace environment variables in the format $EXTENSION_PUBLIC_VAR
                 fileContent = fileContent.replace(
-                  /$EXTENSION_PUBLIC_[A-Z_]+/g,
+                  /\$EXTENSION_PUBLIC_[A-Z_]+/g,
                   (match) => {
                     const envVarName = match.slice(1) // Remove the '$'
                     const value = combinedVars[envVarName] || match