diff --git a/UefiCpuPkg/Include/Library/MtrrLib.h b/UefiCpuPkg/Include/Library/MtrrLib.h
index d05d839915..0bf7d8ed10 100644
--- a/UefiCpuPkg/Include/Library/MtrrLib.h
+++ b/UefiCpuPkg/Include/Library/MtrrLib.h
@@ -375,7 +375,7 @@ MtrrSetMemoryAttributeInMtrrSettings (
                                 When range overlap happens, the last one takes higher priority.
                                 When the function returns, either all the attributes are set successfully,
                                 or none of them is set.
-  @param[in]                    Count of MTRR_MEMORY_RANGE.
+  @param[in]      RangeCount    Count of MTRR_MEMORY_RANGE.
 
   @retval RETURN_SUCCESS            The attributes were set for all the memory ranges.
   @retval RETURN_INVALID_PARAMETER  Length in any range is zero.
diff --git a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
index 8e46e46cd4..9c66f93ac2 100644
--- a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
+++ b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
@@ -2158,7 +2158,7 @@ MtrrLibSetBelow1MBMemoryAttribute (
                                 When range overlap happens, the last one takes higher priority.
                                 When the function returns, either all the attributes are set successfully,
                                 or none of them is set.
-  @param[in]                    Count of MTRR_MEMORY_RANGE.
+  @param[in]       RangeCount   Count of MTRR_MEMORY_RANGE.
 
   @retval RETURN_SUCCESS            The attributes were set for all the memory ranges.
   @retval RETURN_INVALID_PARAMETER  Length in any range is zero.