diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2beca13..ce9410e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -101,12 +101,12 @@ if(BUILD_CHIAVDFC)
 
   set_target_properties(chiavdfc_shared PROPERTIES
           OUTPUT_NAME chiavdfc
-          LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib/shared"
-          RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib/shared"
+          LIBRARY_OUTPUT_DIRECTORY "$<1:${CMAKE_BINARY_DIR}/lib/shared>"
+          RUNTIME_OUTPUT_DIRECTORY "$<1:${CMAKE_BINARY_DIR}/lib/shared>"
   )
 
   set_target_properties(chiavdfc_static PROPERTIES
           OUTPUT_NAME chiavdfc
-          ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib/static"
+          ARCHIVE_OUTPUT_DIRECTORY "$<1:${CMAKE_BINARY_DIR}/lib/static>"
   )
 endif()