diff --git a/src/snmp_trap.hpp b/src/snmp_trap.hpp
index 2f93189..4555e65 100644
--- a/src/snmp_trap.hpp
+++ b/src/snmp_trap.hpp
@@ -47,7 +47,8 @@
 /** @class SNMPTrap
  *  @brief SNMP trap callback implementation.
  */
-template <typename T> class SNMPTrap : public Callback
+template <typename T>
+class SNMPTrap : public Callback
 {
   public:
     SNMPTrap(const SNMPTrap&) = delete;