diff --git a/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py b/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py
index 592d4824a4..dac81454a9 100644
--- a/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/PlatformAutoGen.py
@@ -707,6 +707,8 @@ class PlatformAutoGen(AutoGen):
         self._DynamicPcdList.extend(list(OtherPcdArray))
         self._DynamicPcdList.sort()
         allskuset = [(SkuName, Sku.SkuId) for pcd in self._DynamicPcdList for (SkuName, Sku) in pcd.SkuInfoList.items()]
+        # Remove duplicate sets in the list
+        allskuset = list(set(allskuset))
         for pcd in self._DynamicPcdList:
             if len(pcd.SkuInfoList) == 1:
                 for (SkuName, SkuId) in allskuset: