diff --git a/src/utils/utils.hpp b/src/utils/utils.hpp
index ecc5728..d2e489f 100644
--- a/src/utils/utils.hpp
+++ b/src/utils/utils.hpp
@@ -46,11 +46,11 @@ namespace hack::utils
     }
   }
 
-  inline std::string exec(const char* cmd) 
+  inline std::string exec(const std::string& cmd)
   {
     std::string result;
     std::array<char, 128> buffer;
-    std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
+    std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd.c_str(), "r"), pclose);
 
     if (!pipe) 
     {