diff --git a/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.c b/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.c
index 4561a7dbcb..fa9dce4024 100644
--- a/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.c
+++ b/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.c
@@ -26,6 +26,7 @@ Abstract:
 #include <Library/DebugLib.h>
 #include <Library/PeCoffLib.h>
 #include <Library/HobLib.h>
+#include <Library/PeiServicesLib.h>
 
 EFI_PEI_PE_COFF_LOADER_PROTOCOL  *mPeiEfiPeiPeCoffLoader;
 
@@ -63,15 +64,13 @@ PeiUnixPeCoffLibConstructor (
     //
     // GuidHob is not ready, try to locate PeCoffLoader guid structure.
     //
-    Status = (*PeiServices)->LocatePpi (
-                              PeiServices,
-                              &gEfiPeiPeCoffLoaderGuid,
-                              0,
-                              NULL,
-                              &mPeiEfiPeiPeCoffLoader
-                              );
-    
-    //
+    Status = PeiServicesLocatePpi (
+               &gEfiPeiPeCoffLoaderGuid,
+               0,
+               NULL,
+               &mPeiEfiPeiPeCoffLoader
+               );
+     //
     // PeCofferLoader guid structure must be installed before this library runs.
     //
     ASSERT_EFI_ERROR (Status);
diff --git a/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.inf b/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.inf
index 7be9c26192..6be755fd1a 100644
--- a/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.inf
+++ b/UnixPkg/Library/PeiUnixPeCoffLib/PeiUnixPeCoffLib.inf
@@ -44,6 +44,7 @@
 [LibraryClasses]
   DebugLib
   HobLib
+  PeiServicesLib
 
 [Guids]
   gEfiPeiPeCoffLoaderGuid                # ALWAYS_CONSUMED