diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt
index 30730f716..9b2708623 100644
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@@ -1575,7 +1575,7 @@ if(MSVC AND ASSIMP_INSTALL_PDB)
       COMPILE_PDB_NAME_DEBUG assimp${LIBRARY_SUFFIX}${CMAKE_DEBUG_POSTFIX}
     )
 
-    IF(GENERATOR_IS_MULTI_CONFIG)
+    IF(is_multi_config)
       install(FILES ${Assimp_BINARY_DIR}/code/Debug/assimp${LIBRARY_SUFFIX}${CMAKE_DEBUG_POSTFIX}.pdb
         DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
         CONFIGURATIONS Debug