diff --git a/src/protocols/SessionLock.cpp b/src/protocols/SessionLock.cpp
index a18b1f84..7ed66c97 100644
--- a/src/protocols/SessionLock.cpp
+++ b/src/protocols/SessionLock.cpp
@@ -1,5 +1,6 @@
 #include "SessionLock.hpp"
 #include "../Compositor.hpp"
+#include "FractionalScale.hpp"
 
 #define LOGM PROTO::sessionLock->protoLog
 
@@ -59,6 +60,8 @@ CSessionLockSurface::CSessionLockSurface(SP<CExtSessionLockSurfaceV1> resource_,
         },
         this, "SessionLockSurface");
 
+    PROTO::fractional->sendScale(surface_, pMonitor_->scale);
+
     sendConfigure();
 
     listeners.monitorMode = pMonitor->events.modeChanged.registerListener([this](std::any data) { sendConfigure(); });