diff --git a/ServidorTFG.pro.user b/ServidorTFG.pro.user
index 9dff60f..447273d 100644
--- a/ServidorTFG.pro.user
+++ b/ServidorTFG.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.8.2, 2020-06-03T22:37:50. -->
+<!-- Written by QtCreator 4.8.2, 2020-06-10T21:01:49. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
diff --git a/session_manager.cpp b/session_manager.cpp
index 8811884..05dd3f3 100644
--- a/session_manager.cpp
+++ b/session_manager.cpp
@@ -113,7 +113,7 @@ int session_manager::remove(){
 std::string session_manager::appli_command(char comand[], char* n_package){
   char** args=new char*[5];
     args[0]="sudo";
-    args[1]=strcat(&this->env[0],"emerge");
+    args[1]=&(std::string(this->env)+std::string("emerge"))[0];
     args[2]=comand;
     args[3]=n_package;
     args[4]=nullptr;