diff --git a/src/snmalloc/ds_core/cheri.h b/src/snmalloc/ds_core/cheri.h
index db80976..41514d9 100644
--- a/src/snmalloc/ds_core/cheri.h
+++ b/src/snmalloc/ds_core/cheri.h
@@ -36,6 +36,17 @@ namespace snmalloc
      * permissions checks are required in the non-SNMALLOC_CHECK_CLIENT case
      * to defend ourselves or other clients against a misbehaving client.
      */
+
+    // Defining values 
+    #define	CHERI_PERM_GLOBAL			(1 << 0)	/* 0x00000001 */
+    #define	CHERI_PERM_EXECUTE			(1 << 1)	/* 0x00000002 */
+    #define	CHERI_PERM_LOAD				(1 << 2)	/* 0x00000004 */
+    #define	CHERI_PERM_STORE			(1 << 3)	/* 0x00000008 */
+    #define	CHERI_PERM_LOAD_CAP			(1 << 4)	/* 0x00000010 */
+    #define	CHERI_PERM_STORE_CAP			(1 << 5)	/* 0x00000020 */
+    #define	CHERI_PERM_STORE_LOCAL_CAP		(1 << 6)	/* 0x00000040 */
+    #define	CHERI_PERM_SEAL				(1 << 7)	/* 0x00000080 */
+
     static const size_t reqperm = CHERI_PERM_LOAD | CHERI_PERM_STORE |
       CHERI_PERM_LOAD_CAP | CHERI_PERM_STORE_CAP;
     snmalloc_check_client(