diff --git a/Saphir/Misc.HC b/Saphir/Misc.HC
index 435cbe0..89ca441 100644
--- a/Saphir/Misc.HC
+++ b/Saphir/Misc.HC
@@ -4,7 +4,7 @@ class FunctionIndex {
     U64 addr;
     U64 prologue;
 } fn_index[FN_MAXNUM];
-MemSet(fn_index, 0, sizeof(FunctionIndex));
+MemSet(fn_index, 0, sizeof(FunctionIndex) * FN_MAXNUM);
 
 I64 fn_restore(U32 from)
 {