diff --git a/src/vmprofiles/svsp.cpp b/src/vmprofiles/svsp.cpp
index 7175fcf..bd565d0 100644
--- a/src/vmprofiles/svsp.cpp
+++ b/src/vmprofiles/svsp.cpp
@@ -31,19 +31,20 @@ profiler_t svsp = {
       }}},
     [](zydis_reg_t& vip, zydis_reg_t& vsp,
        hndlr_trace_t& hndlr) -> std::optional<vinstr_t> {
-      vinstr_t res{mnemonic_t::lvsp};
-      const auto sub_vsp = std::find_if(
+      vinstr_t res{mnemonic_t::svsp};
+      const auto mov_vsp_reg = std::find_if(
           hndlr.m_instrs.begin(), hndlr.m_instrs.end(),
           [&](emu_instr_t& instr) -> bool {
             const auto& i = instr.m_instr;
-            return i.mnemonic == ZYDIS_MNEMONIC_SUB &&
-                   i.operands[0].type == ZYDIS_OPERAND_TYPE_REGISTER &&
-                   i.operands[0].reg.value == vsp &&
-                   i.operands[1].type == ZYDIS_OPERAND_TYPE_IMMEDIATE;
+          return i.mnemonic == ZYDIS_MNEMONIC_MOV &&
+                 i.operands[0].type == ZYDIS_OPERAND_TYPE_MEMORY &&
+                 i.operands[0].mem.base == vsp &&
+                 i.operands[0].mem.disp.has_displacement == false &&
+                 i.operands[1].type == ZYDIS_OPERAND_TYPE_REGISTER;
           });
 
       res.imm.has_imm = false;
-      res.stack_size = sub_vsp->m_instr.operands[1].imm.value.u;
+      res.stack_size = mov_vsp_reg->m_instr.operands[1].size;
       return res;
     }};
 }
\ No newline at end of file