diff --git a/lib/contracts/compiler.js b/lib/contracts/compiler.js
index 75ce08f9..f682d214 100644
--- a/lib/contracts/compiler.js
+++ b/lib/contracts/compiler.js
@@ -16,8 +16,9 @@ class Compiler {
 
     let pluginCompilers = self.plugins.getPluginsProperty('compilers', 'compilers');
     pluginCompilers.forEach(function (compilerObject) {
-      if(available_compilers[compilerObject.extension] === undefined)
+      if(available_compilers[compilerObject.extension] === undefined){
         available_compilers[compilerObject.extension] = compilerObject.cb;
+      }
     });
 
     let compiledObject = {};