diff --git a/3rdParty/libev/CMakeLists.txt b/3rdParty/libev/CMakeLists.txt
index 536ff69e33..44cd7d9405 100755
--- a/3rdParty/libev/CMakeLists.txt
+++ b/3rdParty/libev/CMakeLists.txt
@@ -20,6 +20,9 @@ endif ()
 project(libev VERSION 4.22)
 
 if (MSVC)
+
+  set (FLAGS "${FLAGS} /FI\"${PROJECT_SOURCE_DIR}/ev_triagens_win32.h\"")
+  
   foreach (flag_var
 	   CMAKE_C_FLAGS
 	   CMAKE_C_FLAGS_DEBUG
@@ -110,6 +113,8 @@ add_library(ev STATIC
   ${LIBEV_DIR}/event.c
 )
 
+set_target_properties(ev PROPERTIES COMPILE_FLAGS "${FLAGS}") 
+
 set(LIBEV_VERSION
   ${libev_VERSION}
   CACHE INTERNAL
diff --git a/3rdParty/libev/ev_triagens_win32.h b/3rdParty/libev/ev_triagens_win32.h
new file mode 100644
index 0000000000..8de0b7334d
--- /dev/null
+++ b/3rdParty/libev/ev_triagens_win32.h
@@ -0,0 +1,12 @@
+// libev officially recommends to use _open_osfhandle to wrap a SOCKET
+// handle into a file descriptor. However, one should never use 
+// _open_osfhandle for SOCKET handles. Therefore, we do the following 
+// hack: We simply cast a SOCKET handle to an int before we hand it over
+// to libev. This means that we have to redefine the following three
+// macros for our version of libev. We close the handle ourselves outside
+// of libev. Please note that we only use libev for sockets and not for
+// file descriptors of regular files!
+
+#define EV_FD_TO_WIN32_HANDLE(fd) ((SOCKET) fd)
+#define EV_WIN32_HANDLE_TO_FD(handle) ((int) handle)
+#define EV_WIN32_CLOSE_FD(fd)