diff --git a/MdeModulePkg/Library/UefiIfrSupportLib/UefiIfrForm.c b/MdeModulePkg/Library/UefiIfrSupportLib/UefiIfrForm.c
index a81423763b..3feaf92958 100644
--- a/MdeModulePkg/Library/UefiIfrSupportLib/UefiIfrForm.c
+++ b/MdeModulePkg/Library/UefiIfrSupportLib/UefiIfrForm.c
@@ -974,7 +974,7 @@ ConstructConfigHdr (
   EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 
   //
-  // Make sure 
+  // Make sure when ConfigHdr is NULL, StrBufferlen must be 0
   //
   ASSERT (!(ConfigHdr == NULL && *StrBufferLen != 0));