diff --git a/src/test/contracts/big_map.ligo b/src/test/contracts/big_map.ligo
index 8fb705ab5..75d68b27d 100644
--- a/src/test/contracts/big_map.ligo
+++ b/src/test/contracts/big_map.ligo
@@ -1,30 +1,21 @@
 type storage_ is big_map(int, int) * unit
 
 function main(const p : unit; const s : storage_) : list(operation) * storage_ is
-  var r : big_map(int, int) := s.0 ;
   var toto : option (int) := Some(0);
   block {
-    toto := r[23];
-    r[2] := 444;
-    s.0 := r;
+    toto := s.0[23];
+    s.0[2] := 444;
   }
   with ((nil: list(operation)), s)
 
 function set_ (var n : int ; var m : storage_) : storage_ is block {
-  var tmp : big_map(int,int) := m.0 ;
-  tmp[23] := n ;
-  m.0 := tmp ;
+  m.0[23] := n ;
 } with m
 
 function rm (var m : storage_) : storage_ is block {
-  var tmp : big_map(int,int) := m.0 ;
-  remove 42 from map tmp;
-  m.0 := tmp;
+  remove 42 from map m.0;
 } with m
 
 function gf (const m : storage_) : int is begin skip end with get_force(23, m.0)
 
-function get (const m : storage_) : option(int) is
-  begin
-    skip
-  end with m.0[42]
\ No newline at end of file
+function get (const m : storage_) : option(int) is begin skip end with m.0[42]
\ No newline at end of file