diff --git a/test-browser/tests/ballot.js b/test-browser/tests/ballot.js
index e8a10ab540..85dd63b10f 100644
--- a/test-browser/tests/ballot.js
+++ b/test-browser/tests/ballot.js
@@ -6,7 +6,7 @@ var sauce = require('./sauce')
 
 var sources = {
   'sources': {
-    'Untitled': examples.ballot.content
+    'Untitled.sol': examples.ballot.content
   }
 }
 
diff --git a/test-browser/tests/compiling.js b/test-browser/tests/compiling.js
index 9e713142c6..3ea95e8f78 100644
--- a/test-browser/tests/compiling.js
+++ b/test-browser/tests/compiling.js
@@ -5,7 +5,7 @@ var sauce = require('./sauce')
 
 var sources = {
   'sources': {
-    'Untitled': `pragma solidity ^0.4.0;
+    'Untitled.sol': `pragma solidity ^0.4.0;
       contract TestContract { function f() returns (uint) { return 8; } }`
   }
 }
diff --git a/test-browser/tests/simpleContract.js b/test-browser/tests/simpleContract.js
index 06ed5c14e6..ac38571525 100644
--- a/test-browser/tests/simpleContract.js
+++ b/test-browser/tests/simpleContract.js
@@ -5,7 +5,7 @@ var sauce = require('./sauce')
 
 var sources = {
   'sources': {
-    'Untitled': 'contract test1 {} contract test2 {}'
+    'Untitled.sol': 'contract test1 {} contract test2 {}'
   }
 }
 
diff --git a/test-browser/tests/staticanalysis.js b/test-browser/tests/staticanalysis.js
index ec1606b4b8..3273ef9ac1 100644
--- a/test-browser/tests/staticanalysis.js
+++ b/test-browser/tests/staticanalysis.js
@@ -6,7 +6,7 @@ var dom = require('../helpers/dom')
 
 var sources = {
   'sources': {
-    'Untitled': `
+    'Untitled.sol': `
 contract test1 { address test = tx.origin; }
 contract test2 {}
 contract TooMuchGas {