diff --git a/server/gameserver/lispenv.cc b/server/gameserver/lispenv.cc
index 91a30bbd..86a34bc1 100644
--- a/server/gameserver/lispenv.cc
+++ b/server/gameserver/lispenv.cc
@@ -306,11 +306,12 @@ public:
              [this] (const a8::lisp::List& params) -> std::shared_ptr<a8::lisp::Value>
              {
                  double result = 0.0f;
-                 if (context_.buff->GetCaster().Get() && params->size() > 3) {
+                 if (context_.buff->GetCaster().Get() && params->size() >= 3) {
                      a8::lisp::Atom atom_x = std::any_cast<a8::lisp::Atom>(params->at(0)->value);
                      a8::lisp::Atom atom_y = std::any_cast<a8::lisp::Atom>(params->at(1)->value);
                      a8::lisp::Atom atom_z = std::any_cast<a8::lisp::Atom>(params->at(2)->value);
-                     a8::lisp::Atom atom_dur_time = std::any_cast<a8::lisp::Atom>(params->at(3)->value);
+                     glm::vec3 target_pos = glm::vec3(atom_x.val, atom_y.val, atom_z.val);
+                     context_.buff->GetCaster().Get()->SpecShot(target_pos, 1);
                  } else {
 #ifdef MYDEBUG
                      abort();