diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index 7bb6f024..a1d7ef0b 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -24214,7 +24214,7 @@ part # .avr-sx
     prog_modes             = PM_SPM | PM_UPDI;
     n_boot_sections        = 1;
     boot_section_size      = 512;
-    hvupdi_variant         = 2;
+    hvupdi_variant         = 3;
     nvm_base               = 0x1000;
     ocd_base               = 0x0f80;
     syscfg_base            = 0x0f00;