diff --git a/contracts/utils/Address.sol b/contracts/utils/Address.sol
index fe3ba6537..e93111dd0 100644
--- a/contracts/utils/Address.sol
+++ b/contracts/utils/Address.sol
@@ -24,7 +24,7 @@ library Address {
      * ====
      */
     function isContract(address account) internal view returns (bool) {
-        // This method relies in extcodesize, which returns 0 for contracts in
+        // This method relies on extcodesize, which returns 0 for contracts in
         // construction, since the code is only stored at the end of the
         // constructor execution.