diff --git a/src/vm.py b/src/vm.py
index b46c9ed..ba857ae 100644
--- a/src/vm.py
+++ b/src/vm.py
@@ -51,7 +51,7 @@ class VM:
         self.cc: VMCC = VMCC(0)
         self.pc: c_uint32 = c_uint32(0)
         self.registers: list[c_int32] = [c_int32(0) for _ in range(256)]
-        self.breakpoints: set[int] = field(default_factory=set)
+        self.breakpoints: set[int] = set()
         self._vm_flags: VMFlags = VMFlags(0)
         self.__init_callbacks__()