diff --git a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
index 360a5cf1ae9c7..53e4e9c7a53c5 100644
--- a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
+++ b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
@@ -84,6 +84,7 @@ required:
   - compatible
   - reg
   - interrupts
+  - interrupt-names
   - clocks
   - clock-names
   - power-domains