diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentation/devicetree/bindings/sram/sram.yaml
index cb2e11c73d98..d5955fef53a4 100644
--- a/Documentation/devicetree/bindings/sram/sram.yaml
+++ b/Documentation/devicetree/bindings/sram/sram.yaml
@@ -66,7 +66,7 @@ properties:
     type: boolean
 
 patternProperties:
-  "^([a-z0-9]*-)?sram(-section)?@[a-f0-9]+$":
+  "^([a-z0-9]+-)*sram(-section)?@[a-f0-9]+$":
     type: object
     description:
       Each child of the sram node specifies a region of reserved memory.