diff --git a/IntelFrameworkModulePkg/Library/PeiDxeDebugLibReportStatusCode/DebugLib.c b/IntelFrameworkModulePkg/Library/PeiDxeDebugLibReportStatusCode/DebugLib.c
index 58dd56bf4b..497d534571 100644
--- a/IntelFrameworkModulePkg/Library/PeiDxeDebugLibReportStatusCode/DebugLib.c
+++ b/IntelFrameworkModulePkg/Library/PeiDxeDebugLibReportStatusCode/DebugLib.c
@@ -38,6 +38,8 @@
 
   @param  ErrorLevel  The error level of the debug message.
   @param  Format      Format string for the debug message to print.
+  @param  ...         Variable argument list whose contents are accessed 
+                      based on the format string specified by Format.
 
 **/
 VOID