diff --git a/bindings/go/unicorn/unicorn_const.go b/bindings/go/unicorn/unicorn_const.go
index 62effcc3..bd9a5c55 100644
--- a/bindings/go/unicorn/unicorn_const.go
+++ b/bindings/go/unicorn/unicorn_const.go
@@ -61,6 +61,9 @@ const (
 	UC_HOOK_MEM_READ = 37
 	UC_HOOK_MEM_WRITE = 38
 	UC_HOOK_MEM_READ_WRITE = 39
+
+	UC_PROT_NONE = 0
 	UC_PROT_READ = 1
 	UC_PROT_WRITE = 2
+	UC_PROT_ALL = 3
 )
\ No newline at end of file