diff --git a/indra/newview/llagentcamera.cpp b/indra/newview/llagentcamera.cpp
index bb06255fd1efb0b735eea58e54277f70f1c77dd8..66f9e1117b3a8578d2ac711e16090af4752d065f 100644
--- a/indra/newview/llagentcamera.cpp
+++ b/indra/newview/llagentcamera.cpp
@@ -1122,9 +1122,9 @@ void LLAgentCamera::updateLookAt(const S32 mouse_x, const S32 mouse_y)
 		{
 			// range from -.5 to .5
 			F32 x_from_center = 
-				((F32) mouse_x / (F32) gViewerWindow->getWindowWidthScaled() ) - 0.5f;
+				((F32) mouse_x / (F32) gViewerWindow->getWorldViewWidthScaled() ) - 0.5f;
 			F32 y_from_center = 
-				((F32) mouse_y / (F32) gViewerWindow->getWindowHeightScaled() ) - 0.5f;
+				((F32) mouse_y / (F32) gViewerWindow->getWorldViewHeightScaled() ) - 0.5f;
 
 			frameCamera.yaw( - x_from_center * gSavedSettings.getF32("YawFromMousePosition") * DEG_TO_RAD);
 			frameCamera.pitch( - y_from_center * gSavedSettings.getF32("PitchFromMousePosition") * DEG_TO_RAD);