diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ab13ad..a770f89 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -125,6 +125,7 @@ if (MSVC)
     list(APPEND SG_DEPS Boost)
     list(APPEND SG_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR}/src/Boost)
     list(APPEND FG_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR}/src/Boost)
+    list(APPEND FG_CMAKE_ARGS -DPNG_LIBRARY=${CMAKE_BINARY_DIR}/${RDPARTY_DIR}/lib/libpng16.lib)
     list(APPEND FGRUN_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR}/src/Boost)
 endif(MSVC) # of Windows