diff --git a/CMakeLists.txt b/CMakeLists.txt
index 022ed8b..277ea34 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,10 +80,12 @@ endif(N2N_OPTION_USE_ZSTD)
 
 if(N2N_OPTION_USE_PORTMAPPING)
   ADD_DEFINITIONS("-DHAVE_MINIUPNP")
-  ADD_DEFINITIONS("-DHAVE_NATPMP")
   include_directories(${THIRD_PARTY_DIR}/miniupnp/miniupnpc/include)
   include_directories(${PROJECT_BINARY_DIR}/lib_miniupnpc)
+if(NOT DEFINED WIN32)
+  ADD_DEFINITIONS("-DHAVE_NATPMP")
   include_directories(${THIRD_PARTY_DIR}/libnatpmp)
+endif(NOT DEFINED WIN32)
 endif(N2N_OPTION_USE_PORTMAPPING)
 
 if(NOT DEFINED CMAKE_BUILD_TYPE)
@@ -170,9 +172,12 @@ endif(N2N_OPTION_USE_ZSTD)
 if(N2N_OPTION_USE_PORTMAPPING)
   add_subdirectory(${THIRD_PARTY_DIR}/miniupnp/miniupnpc lib_miniupnpc)
   link_directories(${PROJECT_BINARY_DIR}/lib_miniupnpc)
+  target_link_libraries(n2n libminiupnpc-static)
+if(NOT DEFINED WIN32)
   add_subdirectory(${THIRD_PARTY_DIR}/libnatpmp libnatpmp)
   link_directories(${PROJECT_BINARY_DIR}/libnatpmp)
-  target_link_libraries(n2n libminiupnpc-static natpmp)
+  target_link_libraries(n2n natpmp)
+endif(NOT DEFINED WIN32)
 endif(N2N_OPTION_USE_PORTMAPPING)
 
 if(DEFINED WIN32)