diff --git a/src/app/tabs/compileTab/compilerContainer.js b/src/app/tabs/compileTab/compilerContainer.js
index b68eb6acf9..c25188688a 100644
--- a/src/app/tabs/compileTab/compilerContainer.js
+++ b/src/app/tabs/compileTab/compilerContainer.js
@@ -14,7 +14,7 @@ class CompilerContainer {
     this.compileTabLogic = compileTabLogic
     this.editor = editor
     this.config = config
-    this.queryParams = queryParams
+    this.queryParams = queryParamse
 
     this.data = {
       hideWarnings: config.get('hideWarnings') || false,
@@ -114,7 +114,7 @@ class CompilerContainer {
 
   _retrieveVersion () {
     let version = this._view.versionSelector.value
-    return version.substring(9, 14)
+    return version.substring(9, version.length)
   }
 
   render () {
@@ -313,8 +313,7 @@ class CompilerContainer {
   }
 
   _updateLanguageSelector () {
-    if (semver.lt(this._retrieveVersion(), '0.5.7')) {
-      this._view.languageSelector.setAttribute('disabled', '')
+ if (semver.lt(this._retrieveVersion(), 'v0.5.7+commit.6da8b019.js')) {
       this._view.languageSelector.value = 'Solidity'
       this.compileTabLogic.setLanguage('Solidity')
     } else {