diff --git a/bin/main.cpp b/bin/main.cpp
index 9c29168..c30048f 100644
--- a/bin/main.cpp
+++ b/bin/main.cpp
@@ -189,9 +189,9 @@ int main(int argc, char *argv[])
   }
 
   {// ex: utils::exec
-    hack::log()(hack::utils::exec("ls"));
-    hack::log()(hack::utils::exec("pwd"));
-    auto t = hack::utils::exec("pwd");
+    hack::log()(hack::utils::unix_cmd("ls"));
+    hack::log()(hack::utils::unix_cmd("pwd"));
+    auto t = hack::utils::unix_cmd("pwd");
     hack::log::type_trace(t);
   }