diff --git a/arch/arm/dts/uniphier-sld8-ref.dts b/arch/arm/dts/uniphier-sld8-ref.dts
index 6ddf2a1..3557bb7 100644
--- a/arch/arm/dts/uniphier-sld8-ref.dts
+++ b/arch/arm/dts/uniphier-sld8-ref.dts
@@ -8,9 +8,9 @@
  */
 
 /dts-v1/;
-/include/ "uniphier-sld8.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-sld8.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
 
 / {
 	model = "UniPhier sLD8 Reference Board";