diff --git a/Tables/tables.c b/Tables/tables.c
index 3ca50dd..f27dc17 100644
--- a/Tables/tables.c
+++ b/Tables/tables.c
@@ -1,7 +1,7 @@
 #include "tables.h"
 #define NB_REG 4
 #define MEM_SIZE 16
-#define MEM_INST_SIZE 128
+#define MEM_INST_SIZE 256
 #define NB_BITS_INSTRUCTION 5
 #define NB_BITS 8