diff --git a/src/core/net/ip4_types.hpp b/src/core/net/ip4_types.hpp
index 1b8f79aa7..30a35296f 100644
--- a/src/core/net/ip4_types.hpp
+++ b/src/core/net/ip4_types.hpp
@@ -189,7 +189,7 @@ private:
 /**
  * Represents an IPv4 CIDR block.
  */
-class Cidr : public otIp4Cidr, public Unequatable<Cidr>, public Clearable<Address>
+class Cidr : public otIp4Cidr, public Unequatable<Cidr>, public Clearable<Cidr>
 {
     friend class Address;