diff --git a/MdePkg/Include/Library/PerformanceLib.h b/MdePkg/Include/Library/PerformanceLib.h
index 0622527e7b..7498d02c82 100644
--- a/MdePkg/Include/Library/PerformanceLib.h
+++ b/MdePkg/Include/Library/PerformanceLib.h
@@ -38,6 +38,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
   @retval RETURN_SUCCESS          The start of the measurement was recorded.
   @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.
+  @retval RETURN_DEVICE_ERROR     A device error reading the time stamp.
 
 **/
 RETURN_STATUS
@@ -70,6 +71,7 @@ StartPerformanceMeasurement (
 
   @retval RETURN_SUCCESS          The end of  the measurement was recorded.
   @retval RETURN_NOT_FOUND        The specified measurement record could not be found.
+  @retval RETURN_DEVICE_ERROR     A device error reading the time stamp.
 
 **/
 RETURN_STATUS
diff --git a/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c b/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c
index 93367f8955..c3dd2734d6 100644
--- a/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c
+++ b/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c
@@ -38,6 +38,7 @@
 
   @retval RETURN_SUCCESS          The start of the measurement was recorded.
   @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.
+  @retval RETURN_DEVICE_ERROR     A device error reading the time stamp.
 
 **/
 RETURN_STATUS
@@ -73,6 +74,7 @@ StartPerformanceMeasurement (
 
   @retval RETURN_SUCCESS          The end of  the measurement was recorded.
   @retval RETURN_NOT_FOUND        The specified measurement record could not be found.
+  @retval RETURN_DEVICE_ERROR     A device error reading the time stamp.
 
 **/
 RETURN_STATUS