diff --git a/src/command.h b/src/command.h
index 0a16b8c..c6d35e8 100644
--- a/src/command.h
+++ b/src/command.h
@@ -43,6 +43,14 @@ public:
 
     void execute(int argc, char *argv[])
     {
+
+        if (argc < 2)
+        {
+            std::cout << "Command not found" << std::endl;
+            throw lpstd::exceptions::ParameterException("argc < 2");
+            return;
+        }
+
         std::string command = argv[1];
         std::vector<std::string> args;
         for (int i = 2; i < argc; i++)
diff --git a/src/commands.h b/src/commands.h
index 9b74c2a..25c487f 100644
--- a/src/commands.h
+++ b/src/commands.h
@@ -6,7 +6,7 @@
 
 using namespace lpstd::exceptions;
 
-    namespace commands
+namespace commands
 {
     void add(int argc, char *argv[])
     {