diff --git a/config/rv64gc/config.vh b/config/rv64gc/config.vh
index a8b7f1b05..af6e4aebd 100644
--- a/config/rv64gc/config.vh
+++ b/config/rv64gc/config.vh
@@ -107,7 +107,7 @@ localparam logic [63:0] BOOTROM_RANGE =  64'h00000FFF;
 localparam BOOTROM_PRELOAD = 1'b0;
 localparam UNCORE_RAM_SUPPORTED = 1'b1;
 localparam logic [63:0] UNCORE_RAM_BASE =       64'h80000000;
-localparam logic [63:0] UNCORE_RAM_RANGE =      64'h7FFFFFFF;
+localparam logic [63:0] UNCORE_RAM_RANGE =      64'h07FFFFFF;
 localparam UNCORE_RAM_PRELOAD = 1'b0;
 localparam EXT_MEM_SUPPORTED = 1'b0;
 localparam logic [63:0] EXT_MEM_BASE =       64'h80000000;