diff --git a/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c b/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c
index 61d4b67c64..8780297a77 100644
--- a/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c
+++ b/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c
@@ -958,7 +958,7 @@ PeiCheckAndSwitchStack (
   @param PeimFileHandle       Pointer to the FFS file header of the image.
   @param MigratedFileHandle   Pointer to the FFS file header of the migrated image.
 
-  @retval EFI_SUCCESS         Sucessfully migrated the PEIM to permanent memory.
+  @retval EFI_SUCCESS         Successfully migrated the PEIM to permanent memory.
 
 **/
 EFI_STATUS
@@ -1120,7 +1120,7 @@ MigratePeimsInFv (
                          environment, such as the size and location of temporary RAM, the stack location and
                          the BFV location.
 
-  @retval EFI_SUCCESS           Succesfully migrated installed FVs from temporary RAM to permanent memory.
+  @retval EFI_SUCCESS           Successfully migrated installed FVs from temporary RAM to permanent memory.
   @retval EFI_OUT_OF_RESOURCES  Insufficient memory exists to allocate needed pages.
 
 **/
diff --git a/MdeModulePkg/Core/Pei/PeiMain.h b/MdeModulePkg/Core/Pei/PeiMain.h
index daa48b4c5f..0046f19447 100644
--- a/MdeModulePkg/Core/Pei/PeiMain.h
+++ b/MdeModulePkg/Core/Pei/PeiMain.h
@@ -419,7 +419,7 @@ MigratePeim (
                          environment, such as the size and location of temporary RAM, the stack location and
                          the BFV location.
 
-  @retval EFI_SUCCESS           Succesfully migrated installed FVs from temporary RAM to permanent memory.
+  @retval EFI_SUCCESS           Successfully migrated installed FVs from temporary RAM to permanent memory.
   @retval EFI_OUT_OF_RESOURCES  Insufficient memory exists to allocate needed pages.
 
 **/