diff --git a/remix-solidity/src/compiler/compiler-input.js b/remix-solidity/src/compiler/compiler-input.js
index d5768c9ac9..56e9b1d047 100644
--- a/remix-solidity/src/compiler/compiler-input.js
+++ b/remix-solidity/src/compiler/compiler-input.js
@@ -24,7 +24,7 @@ module.exports = (sources, opts) => {
   if (opts.language) {
     o.language = opts.language
   }
-  if (opts.language == 'Yul' && o.settings.optimizer.enabled)
+  if (opts.language === 'Yul' && o.settings.optimizer.enabled)
   {
     o.settings.optimizer.details['yul'] = true
   }