diff --git a/include/libev.h b/include/libev.h
index 41672ee..a1442ae 100644
--- a/include/libev.h
+++ b/include/libev.h
@@ -16,6 +16,11 @@
  */
 #pragma once
 
+/**
+ *  Dependencies
+ */
+#include <ev.h>
+
 /**
  *  Set up namespace
  */
diff --git a/src/tcpresolver.h b/src/tcpresolver.h
index e16d626..162dfd8 100644
--- a/src/tcpresolver.h
+++ b/src/tcpresolver.h
@@ -112,9 +112,9 @@ private:
             // connection succeeded, mark socket as non-blocking
             if (_socket >= 0) 
             {
-                // turn socket into a non-blocking socket
-                fcntl(_socket, F_SETFL, O_NONBLOCK);
-
+                // turn socket into a non-blocking socket and set the close-on-exec bit
+                fcntl(_socket, F_SETFL, O_NONBLOCK | O_CLOEXEC);
+                
                 // we want to enable "nodelay" on sockets (otherwise all send operations are s-l-o-w
                 int optval = 1;