diff --git a/libraries/base/common/src/vhdl/common_pkg.vhd b/libraries/base/common/src/vhdl/common_pkg.vhd
index 55bf1da32ec2cac8f6a1c035ea219a7c4ade3a75..103999daa8626e028136728eb91b0bfe1bb365e2 100644
--- a/libraries/base/common/src/vhdl/common_pkg.vhd
+++ b/libraries/base/common/src/vhdl/common_pkg.vhd
@@ -51,6 +51,7 @@ PACKAGE common_pkg IS
   CONSTANT c_64                   : NATURAL := 64;
   CONSTANT c_128                  : NATURAL := 128;
   CONSTANT c_256                  : NATURAL := 256;
+  CONSTANT c_natural_high         : NATURAL := 2147483647;  -- = 2**31 - 1 = NATURAL'HIGH;
   
   -- widths and sizes
   CONSTANT c_halfword_sz          : NATURAL := 2;