diff --git a/src/core/plasma-api/utils.hpp b/src/core/plasma-api/utils.hpp
index 9d9d4ade..f9b12acf 100644
--- a/src/core/plasma-api/utils.hpp
+++ b/src/core/plasma-api/utils.hpp
@@ -18,6 +18,14 @@
         m_kwinImpl->setProperty(#NAME, QVariant::fromValue(value));                                                                                            \
     }
 
+#define BI_READONLY_PROPERTY(TYPE, NAME)                                                                                                                       \
+    Q_PROPERTY(TYPE NAME READ NAME);                                                                                                                           \
+                                                                                                                                                               \
+    TYPE NAME() const                                                                                                                                          \
+    {                                                                                                                                                          \
+        return m_kwinImpl->property(#NAME).value<TYPE>();                                                                                                      \
+    }
+
 /**
  * Wrap QML API method
  *
diff --git a/src/core/plasma-api/workspace.hpp b/src/core/plasma-api/workspace.hpp
index 7fbdefc7..da2332ba 100644
--- a/src/core/plasma-api/workspace.hpp
+++ b/src/core/plasma-api/workspace.hpp
@@ -40,6 +40,7 @@ public:
     BI_PROPERTY(int, currentDesktop, setCurrentDesktop);
     BI_PROPERTY(QString, currentActivity, setCurrentActivity);
     BI_PROPERTY(int, desktops, setDesktops);
+    BI_READONLY_PROPERTY(int, numScreens);
 
     /**
      * Returns the geometry a Client can use with the specified option.
diff --git a/src/kwinscript/driver/index.ts b/src/kwinscript/driver/index.ts
index a5aeba45..1856328d 100644
--- a/src/kwinscript/driver/index.ts
+++ b/src/kwinscript/driver/index.ts
@@ -102,7 +102,7 @@ export class DriverImpl implements Driver {
 
   public get screens(): DriverSurface[] {
     const screensArr = [];
-    for (let screen = 0; screen < this.kwinApi.workspace.numScreens; screen++) {
+    for (let screen = 0; screen < this.proxy.workspace().numScreens; screen++) {
       screensArr.push(
         new DriverSurfaceImpl(
           screen,