diff --git a/OvmfPkg/VirtioKeyboardDxe/VirtioKeyboard.c b/OvmfPkg/VirtioKeyboardDxe/VirtioKeyboard.c
index e2fae72701..b8fadd5730 100644
--- a/OvmfPkg/VirtioKeyboardDxe/VirtioKeyboard.c
+++ b/OvmfPkg/VirtioKeyboardDxe/VirtioKeyboard.c
@@ -321,7 +321,7 @@ VirtioKeyboardUninitRing (
     Ring->Buffers = NULL;
   }
 
-  if (!Ring->RingMap) {
+  if (Ring->RingMap) {
     Dev->VirtIo->UnmapSharedBuffer (Dev->VirtIo, Ring->RingMap);
     Ring->RingMap = NULL;
   }