diff --git a/src/execute.c b/src/execute.c
index 35bd391..b7ee263 100644
--- a/src/execute.c
+++ b/src/execute.c
@@ -27,11 +27,11 @@ typedef enum
 
 static void prefix_operator(Stack *stack, char op)
 {
-    // if (NAME[0] != '@' && (NAME[1] == '\0' || NAME[1] == '\n'))
-    // {
-    //     printf("%c\n", op);
-    //     kms(stack, "Invalid usage of prefix operators");
-    // }
+    if (NAME[0] != '@' && (NAME[1] == '\0' || NAME[1] == '\n'))
+    {
+        printf("%c\n", op);
+        kms(stack, "Invalid usage of prefix operators");
+    }
 
     switch (op)
     {
diff --git a/tests/test.lb b/tests/test.lb
new file mode 100644
index 0000000..a66f1b4
--- /dev/null
+++ b/tests/test.lb
@@ -0,0 +1,18 @@
+; Лабашки ооп
+
+
+@ 4441             ; Класс
+
+    @ 4442         ; Поле + сеттер
+        |field
+        |jmp 0
+
+    @ 4443         ; Поле + сеттер
+        |field
+        |jmp 0
+
+    @ 44411        ; Метод
+        push 444111 ; Метка для возвращения
+        push 2
+        jmp 4442
+        @ 444111    ; ^^^
\ No newline at end of file