diff --git a/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py b/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py
index af66c48c7d..26ab8e7f36 100644
--- a/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py
@@ -253,7 +253,7 @@ class PlatformAutoGen(AutoGen):
         VariableInfo.SetVpdRegionMaxSize(VpdRegionSize)
         VariableInfo.SetVpdRegionOffset(VpdRegionBase)
         Index = 0
-        for Pcd in DynamicPcdSet:
+        for Pcd in sorted(DynamicPcdSet):
             pcdname = ".".join((Pcd.TokenSpaceGuidCName, Pcd.TokenCName))
             for SkuName in Pcd.SkuInfoList:
                 Sku = Pcd.SkuInfoList[SkuName]
diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index 1afbd3eefc..4a128c8a77 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -2584,7 +2584,7 @@ class DscBuildData(PlatformBuildClassObject):
         CApp = CApp + '\n'
         for Pcd in StructuredPcds.values():
             CApp = CApp + self.GenerateArrayAssignment(Pcd)
-        for PcdName in StructuredPcds:
+        for PcdName in sorted(StructuredPcds.keys()):
             Pcd = StructuredPcds[PcdName]
             CApp = CApp + self.GenerateSizeFunction(Pcd)
             CApp = CApp + self.GenerateDefaultValueAssignFunction(Pcd)