diff --git a/CMakeLists.txt b/CMakeLists.txt
index 06f3161..a758f95 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,7 +40,7 @@ set(DEBUG_LDFLAGS
 add_compile_options("$<$<CONFIG:Debug>:${DEBUG_CXXFLAGS}>")
 # add_link_options was introduced in version 3.13.
 if(${CMAKE_VERSION} VERSION_LESS 3.13)
-  set(CMAKE_SHARED_LINKER_FLAGS "$<$<CONFIG:Debug>:${DEBUG_LDFLAGS}>")
+  set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${DEBUG_LDFLAGS}")
 else()
   add_link_options("$<$<CONFIG:Debug>:${DEBUG_LDFLAGS}>")
 endif()