diff --git a/hdr/crt-sony-megatron-sony-pvm-20L4.slangp b/hdr/crt-sony-megatron-sony-pvm-20L4.slangp
index eaa6d78..cd55680 100644
--- a/hdr/crt-sony-megatron-sony-pvm-20L4.slangp
+++ b/hdr/crt-sony-megatron-sony-pvm-20L4.slangp
@@ -1,7 +1,7 @@
 #reference "crt-sony-megatron-sony-pvm.slangp"
 
 hcrt_crt_resolution = "1.000000"
-hcrt_red_vertical_convergence = "0.250000"
+hcrt_red_vertical_convergence = "0.100000"
 hcrt_green_vertical_convergence = "0.000000"
 hcrt_blue_vertical_convergence = "0.000000"
 hcrt_red_scanline_min = "0.250000"