diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 608ed302f24d..a66955037e4e 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -878,7 +878,7 @@ parse_mipi(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
 
 	/* error during parsing so set all pointers to null
 	 * because of partial parsing */
-	memset(dev_priv->vbt.dsi.sequence, 0, MIPI_SEQ_MAX);
+	memset(dev_priv->vbt.dsi.sequence, 0, sizeof(dev_priv->vbt.dsi.sequence));
 }
 
 static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,