diff --git a/include/bitcoin/network/p2p.hpp b/include/bitcoin/network/p2p.hpp
index b6ec731c3..a51e0a049 100644
--- a/include/bitcoin/network/p2p.hpp
+++ b/include/bitcoin/network/p2p.hpp
@@ -113,7 +113,7 @@ class BCT_API p2p
     /// -----------------------------------------------------------------------
 
     /// Suspend/resume all connections.
-    virtual void suspend() NOEXCEPT;
+    virtual void suspend(const code& ec) NOEXCEPT;
     virtual void resume() NOEXCEPT;
 
     /// Properties.
diff --git a/src/p2p.cpp b/src/p2p.cpp
index d427b0b70..153e18e86 100644
--- a/src/p2p.cpp
+++ b/src/p2p.cpp
@@ -395,7 +395,7 @@ void p2p::resume_connectors() NOEXCEPT
     connect_suspended_.store(false);
 }
 
-void p2p::suspend() NOEXCEPT
+void p2p::suspend(const code&) NOEXCEPT
 {
     suspend_acceptors();
     suspend_connectors();