diff --git a/src/apps/showimage/ShowImageWindow.cpp b/src/apps/showimage/ShowImageWindow.cpp
index 14f8a18852..d14136dd3e 100644
--- a/src/apps/showimage/ShowImageWindow.cpp
+++ b/src/apps/showimage/ShowImageWindow.cpp
@@ -377,7 +377,7 @@ void
 ShowImageWindow::WindowRedimension(BBitmap *pbitmap)
 {
 	BScreen screen;
-	if (screen.IsValid())
+	if (!screen.IsValid())
 		return;
 
 	BRect r(pbitmap->Bounds());