diff --git a/Tools/cases_generator/generate_cases.py b/Tools/cases_generator/generate_cases.py
index 59e249930b45df..90f101adceeb47 100644
--- a/Tools/cases_generator/generate_cases.py
+++ b/Tools/cases_generator/generate_cases.py
@@ -810,6 +810,7 @@ def write_metadata_for_inst(self, instr: Instruction) -> None:
                 directions.extend("DIR_WRITE" for _ in instr.output_effects)
                 directions.extend("DIR_NONE" for _ in range(3))
                 dir_op1, dir_op2, dir_op3 = directions[:3]
+                n_popped = n_pushed = 0
         self.out.emit(
             f'    [{instr.name}] = {{ {n_popped}, {n_pushed}, {dir_op1}, {dir_op2}, {dir_op3}, true, {INSTR_FMT_PREFIX}{instr.instr_fmt} }},'
         )