diff --git a/booru_viewer/gui/preview.py b/booru_viewer/gui/preview.py
index ec1999a..c4f1957 100644
--- a/booru_viewer/gui/preview.py
+++ b/booru_viewer/gui/preview.py
@@ -84,6 +84,10 @@ class FullscreenPreview(QMainWindow):
 
         from PySide6.QtWidgets import QApplication
         QApplication.instance().installEventFilter(self)
+        # Show on the same monitor as the parent window
+        if parent and parent.screen():
+            self.setScreen(parent.screen())
+            self.setGeometry(parent.screen().geometry())
         self.showFullScreen()
 
     def update_state(self, bookmarked: bool, saved: bool) -> None: