diff --git a/cmake/externals/polyvox/CMakeLists.txt b/cmake/externals/polyvox/CMakeLists.txt
index 7b67bb93b5..5840eaf624 100644
--- a/cmake/externals/polyvox/CMakeLists.txt
+++ b/cmake/externals/polyvox/CMakeLists.txt
@@ -52,11 +52,11 @@ if (WIN32)
   set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_RELEASE ${INSTALL_DIR}/PolyVoxCore/lib/Release/PolyVoxCore.lib CACHE FILEPATH "polyvox core library")
 #  set(${EXTERNAL_NAME_UPPER}_UTIL_LIBRARY ${INSTALL_DIR}/PolyVoxUtil/lib/PolyVoxUtil.lib CACHE FILEPATH "polyvox util library")
 elseif (APPLE)
-set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_DEBUG ${INSTALL_DIR}/lib/libPolyVoxCore.dylib CACHE FILEPATH "polyvox core library")
-set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_RELEASE ${INSTALL_DIR}/lib/libPolyVoxCore.dylib CACHE FILEPATH "polyvox core library")
+  set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_DEBUG ${INSTALL_DIR}/lib/Debug/libPolyVoxCore.dylib CACHE FILEPATH "polyvox core library")
+  set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_RELEASE ${INSTALL_DIR}/lib/Release/libPolyVoxCore.dylib CACHE FILEPATH "polyvox core library")
 #  set(${EXTERNAL_NAME_UPPER}_UTIL_LIBRARY ${INSTALL_DIR}/lib/libPolyVoxUtil.dylib CACHE FILEPATH "polyvox util library")
 else ()
-  set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_DEBUG ${INSTALL_DIR}/lib/libPolyVoxCore.so CACHE FILEPATH "polyvox core library")
-  set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_RELEASE ${INSTALL_DIR}/lib/libPolyVoxCore.so CACHE FILEPATH "polyvox core library")
+  set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_DEBUG ${INSTALL_DIR}/lib/Debug/libPolyVoxCore.so CACHE FILEPATH "polyvox core library")
+  set(${EXTERNAL_NAME_UPPER}_CORE_LIBRARY_RELEASE ${INSTALL_DIR}/lib/Release/libPolyVoxCore.so CACHE FILEPATH "polyvox core library")
 #  set(${EXTERNAL_NAME_UPPER}_UTIL_LIBRARY ${INSTALL_DIR}/lib/libPolyVoxUtil.so CACHE FILEPATH "polyvox util library")
 endif ()