diff --git a/nanosoc/nanosoc_system/verilog/nanosoc_system.v b/nanosoc/nanosoc_system/verilog/nanosoc_system.v
index 0b8d22fe37f9ef9f66c398b7240c3183d422da32..c3d2ab99b4e383b4e6bab300b2f287da05a59f38 100644
--- a/nanosoc/nanosoc_system/verilog/nanosoc_system.v
+++ b/nanosoc/nanosoc_system/verilog/nanosoc_system.v
@@ -66,7 +66,7 @@ module nanosoc_system #(
     parameter    SYSTABLE_BASE        = 32'hF000_0000,  // Base Address of System ROM Table
     
     // SoCLabs Manufacture ID
-    parameter    SOCLABS_JEPID = 7'd51, //- SL (SoCLabs)
+    parameter    SOCLABS_JEPID = 7'h51, //- SL (SoCLabs)
     
     // NanoSoC Part and Revision Numbers
     parameter    NANOSOC_PARTNUMBER = 12'h001,