diff --git a/bondcpp/include/bondcpp/bond.hpp b/bondcpp/include/bondcpp/bond.hpp
index 873dc4c..f8a53b4 100644
--- a/bondcpp/include/bondcpp/bond.hpp
+++ b/bondcpp/include/bondcpp/bond.hpp
@@ -58,6 +58,7 @@ namespace bond
 class Bond
 {
 public:
+  using EventCallback = std::function<void (void)>;
   /** \brief Constructs a bond, but does not connect
    *
    * \param topic The topic used to exchange the bond status messages.
@@ -70,8 +71,8 @@ class Bond
   Bond(
     const std::string & topic, const std::string & id,
     rclcpp_lifecycle::LifecycleNode::SharedPtr nh,
-    std::function<void(void)> on_broken = std::function<void(void)>(),
-    std::function<void(void)> on_formed = std::function<void(void)>());
+    EventCallback on_broken = EventCallback(),
+    EventCallback on_formed = EventCallback());
 
   /** \brief Constructs a bond, but does not connect
    *
@@ -85,8 +86,8 @@ class Bond
   Bond(
     const std::string & topic, const std::string & id,
     rclcpp::Node::SharedPtr nh,
-    std::function<void(void)> on_broken = std::function<void(void)>(),
-    std::function<void(void)> on_formed = std::function<void(void)>());
+    EventCallback on_broken = EventCallback(),
+    EventCallback on_formed = EventCallback());
 
   /** \brief Destructs the object, breaking the bond if it is still formed.
    */
@@ -120,11 +121,11 @@ class Bond
   void start();
   /** \brief Sets the formed callback.
    */
-  void setFormedCallback(std::function<void(void)> on_formed);
+  void setFormedCallback(EventCallback on_formed);
 
   /** \brief Sets the broken callback
    */
-  void setBrokenCallback(std::function<void(void)> on_broken);
+  void setBrokenCallback(EventCallback on_broken);
 
   /** \brief Blocks until the bond is formed for at most 'duration'.
    *    Assumes the node to be spinning in the background
@@ -162,7 +163,7 @@ class Bond
   void doPublishing();
   void publishStatus(bool active);
 
-  std::vector<std::function<void(void)>> pending_callbacks_;
+  std::vector<EventCallback> pending_callbacks_;
   void flushPendingCallbacks();
 
   rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_base_;
@@ -182,8 +183,9 @@ class Bond
   std::string id_;
   std::string instance_id_;
   std::string sister_instance_id_;
-  std::function<void(void)> on_broken_;
-  std::function<void(void)> on_formed_;
+  EventCallback on_broken_;
+  EventCallback on_formed_;
+
   bool sisterDiedFirst_;
   bool started_;
   bool connect_timer_reset_flag_;
@@ -201,10 +203,8 @@ class Bond
   rclcpp::Subscription<bond::msg::Status>::SharedPtr sub_;
   rclcpp::Publisher<bond::msg::Status>::SharedPtr pub_;
 };
-
 }  // namespace bond
 
-
 // Internal use only
 struct BondSM
 {
diff --git a/bondcpp/src/bond.cpp b/bondcpp/src/bond.cpp
index 4ff139a..66681b4 100644
--- a/bondcpp/src/bond.cpp
+++ b/bondcpp/src/bond.cpp
@@ -71,8 +71,8 @@ static std::string makeUUID()
 Bond::Bond(
   const std::string & topic, const std::string & id,
   rclcpp_lifecycle::LifecycleNode::SharedPtr nh,
-  std::function<void(void)> on_broken,
-  std::function<void(void)> on_formed)
+  EventCallback on_broken,
+  EventCallback on_formed)
 : bondsm_(new BondSM(this)),
   sm_(*bondsm_),
   topic_(topic),
@@ -108,8 +108,8 @@ Bond::Bond(
 Bond::Bond(
   const std::string & topic, const std::string & id,
   rclcpp::Node::SharedPtr nh,
-  std::function<void(void)> on_broken,
-  std::function<void(void)> on_formed)
+  EventCallback on_broken,
+  EventCallback on_formed)
 : bondsm_(new BondSM(this)),
   sm_(*bondsm_),
   topic_(topic),
@@ -380,13 +380,13 @@ void Bond::start()
   started_ = true;
 }
 
-void Bond::setFormedCallback(std::function<void(void)> on_formed)
+void Bond::setFormedCallback(EventCallback on_formed)
 {
   std::unique_lock<std::mutex> lock(mutex_);
   on_formed_ = on_formed;
 }
 
-void Bond::setBrokenCallback(std::function<void(void)> on_broken)
+void Bond::setBrokenCallback(EventCallback on_broken)
 {
   std::unique_lock<std::mutex> lock(mutex_);
   on_broken_ = on_broken;
@@ -545,7 +545,7 @@ void Bond::publishStatus(bool active)
 
 void Bond::flushPendingCallbacks()
 {
-  std::vector<std::function<void(void)>> callbacks;
+  std::vector<EventCallback> callbacks;
   {
     std::unique_lock<std::mutex> lock(mutex_);
     callbacks = pending_callbacks_;