diff --git a/Documentation/devicetree/bindings/phy/marvell,mmp3-hsic-phy.yaml b/Documentation/devicetree/bindings/phy/marvell,mmp3-hsic-phy.yaml
index 7917a95cda78..5ab436189f3b 100644
--- a/Documentation/devicetree/bindings/phy/marvell,mmp3-hsic-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/marvell,mmp3-hsic-phy.yaml
@@ -33,6 +33,7 @@ required:
 
 examples:
   - |
+    #include <dt-bindings/gpio/gpio.h>
     hsic-phy@f0001800 {
             compatible = "marvell,mmp3-hsic-phy";
             reg = <0xf0001800 0x40>;