diff --git a/reactos/subsystems/win32/win32k/ntuser/monitor.c b/reactos/subsystems/win32/win32k/ntuser/monitor.c
index 4245c005500..a3e2121ffb5 100644
--- a/reactos/subsystems/win32/win32k/ntuser/monitor.c
+++ b/reactos/subsystems/win32/win32k/ntuser/monitor.c
@@ -341,6 +341,11 @@ IntGetMonitorsFromRect(OPTIONAL IN LPCRECT pRect,
       DPRINT("MonitorRect: left = %d, top = %d, right = %d, bottom = %d\n",
              MonitorRect.left, MonitorRect.top, MonitorRect.right, MonitorRect.bottom);
 
+      if (flags == MONITOR_DEFAULTTOPRIMARY && Monitor->IsPrimary)
+      {
+         PrimaryMonitor = Monitor;
+      }
+
       if (pRect != NULL)
       {
          BOOL intersects = TRUE;
@@ -384,11 +389,6 @@ IntGetMonitorsFromRect(OPTIONAL IN LPCRECT pRect,
          IntersectionRect = MonitorRect;
       }
 
-      if (flags == MONITOR_DEFAULTTOPRIMARY && Monitor->IsPrimary)
-      {
-         PrimaryMonitor = Monitor;
-      }
-
       if (iCount < listSize)
       {
          if (hMonitorList != NULL)