diff --git a/lib/compiler.js b/lib/compiler.js
index 253bbc13f..9a3105788 100644
--- a/lib/compiler.js
+++ b/lib/compiler.js
@@ -74,7 +74,8 @@ Compiler.prototype.compile_serpent = function(contractFile) {
 
 
 Compiler.prototype.compile = function(contractFile) {
-  var extension = contractFile.split('.')[1];
+  var contractFileParts = contractFile.split('.')[1]
+    ,extension = contractFileParts[contractFileParts.length-1];
 
   if (extension === 'sol') {
     return this.compile_solidity(contractFile);