diff --git a/src/platformsupport/kmsconvenience/qkmsdevice.cpp b/src/platformsupport/kmsconvenience/qkmsdevice.cpp
index 74d7bafe1bc..c7a1624ef5d 100644
--- a/src/platformsupport/kmsconvenience/qkmsdevice.cpp
+++ b/src/platformsupport/kmsconvenience/qkmsdevice.cpp
@@ -284,7 +284,7 @@ QPlatformScreen *QKmsDevice::createScreenForConnector(drmModeResPtr resources,
 
     if (current < 0 && crtc_mode.clock != 0) {
         modes << crtc_mode;
-        current = mode.size() - 1;
+        current = modes.size() - 1;
     }
 
     if (configuration == OutputConfigCurrent)