diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..52031de
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.sol linguist-language=Solidity
diff --git a/ethereum/vendor.sol b/ethereum/vendor.sol
index bcfa03c..bad9c89 100644
--- a/ethereum/vendor.sol
+++ b/ethereum/vendor.sol
@@ -1,4 +1,4 @@
-pragma solidity ^0.4.6;
+pragma solidity 0.4.6;
 
 contract vendor {
     // contract owner