diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
index f2c4995395..2b529d58a1 100644
--- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
+++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
@@ -161,6 +161,11 @@ InstallOvmfFvTables (
     TableInstallFunction = InstallAcpiTable;
   }
 
+  //
+  // set FwVol (and use an ASSERT() below) to suppress incorrect
+  // compiler/analyzer warnings
+  //
+  FwVol = NULL;
   //
   // Locate the firmware volume protocol
   //
@@ -168,6 +173,8 @@ InstallOvmfFvTables (
   if (EFI_ERROR (Status)) {
     return EFI_ABORTED;
   }
+  ASSERT (FwVol != NULL);
+
   //
   // Read tables from the storage file.
   //