diff --git a/configs/ironlake b/configs/ironlake
index 7450d35..8a4e66a 100644
--- a/configs/ironlake
+++ b/configs/ironlake
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Ironlake
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#