diff --git a/core/math/camera_matrix.cpp b/core/math/camera_matrix.cpp
index c5f1d574418..42d2d0373a2 100644
--- a/core/math/camera_matrix.cpp
+++ b/core/math/camera_matrix.cpp
@@ -140,6 +140,7 @@ void CameraMatrix::set_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_
 	real_t add = ((f1 + f2) * (p_oversample - 1.0)) / 2.0;
 	f1 += add;
 	f2 += add;
+	f3 *= p_oversample;
 
 	// always apply KEEP_WIDTH aspect ratio
 	f3 *= p_aspect;