diff --git a/src/plugins/platforms/winrt/qwinrtintegration.cpp b/src/plugins/platforms/winrt/qwinrtintegration.cpp
index be82390723..b3a2cafa2e 100644
--- a/src/plugins/platforms/winrt/qwinrtintegration.cpp
+++ b/src/plugins/platforms/winrt/qwinrtintegration.cpp
@@ -124,6 +124,8 @@ bool QWinRTIntegration::hasCapability(QPlatformIntegration::Capability cap) cons
     case OpenGL:
     case ApplicationState:
         return true;
+    case NonFullScreenWindows:
+        return false;
     default:
         return QPlatformIntegration::hasCapability(cap);
     }