1 files changed, 2 insertions, 2 deletions

diff --git a/src/keeper.c b/src/keeper.c
index ea061ce..ef0bacf 100644
--- a/src/keeper.c
+++ b/src/keeper.c
@@ -183,7 +183,7 @@ static void push_table( lua_State* L, int idx_)
         STACK_END( L, 1);
 }
 
-int keeper_push_linda_storage( struct s_Universe* U, lua_State* L, void* ptr_, unsigned long magic_)
+int keeper_push_linda_storage( struct s_Universe* U, lua_State* L, void* ptr_, ptrdiff_t magic_)
 {
         struct s_Keeper* const K = keeper_acquire( U->keepers, magic_);
         lua_State* const KL = K ? K->L : NULL;
@@ -717,7 +717,7 @@ void init_keepers( struct s_Universe* U, lua_State* L)
         STACK_END( L, 0);
 }
 
-struct s_Keeper* keeper_acquire( struct s_Keepers* keepers_, unsigned long magic_)
+struct s_Keeper* keeper_acquire( struct s_Keepers* keepers_, ptrdiff_t magic_)
 {
         int const nbKeepers = keepers_->nb_keepers;
         // can be 0 if this happens during main state shutdown (lanes is being GC'ed -> no keepers)