diff --git a/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
index c960c6cdbf..738fdce9a1 100644
--- a/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
@@ -752,10 +752,10 @@ PciInitialization (
   PciWrite8 (PCI_LIB_ADDRESS (0, 3, 0, 0x3d), 0x01);
 
   //
-  // Bus 0, Device 4, Function 0 - RAM Memory
+  // Bus 0, Device 5, Function 0 - RAM Memory
   //
-  PciWrite8 (PCI_LIB_ADDRESS (0, 4, 0, 0x3c), 0x09);
-  PciWrite8 (PCI_LIB_ADDRESS (0, 4, 0, 0x3d), 0x01);
+  PciWrite8 (PCI_LIB_ADDRESS (0, 5, 0, 0x3c), 0x09);
+  PciWrite8 (PCI_LIB_ADDRESS (0, 5, 0, 0x3d), 0x01);
 }