diff --git a/config/nim.cfg b/config/nim.cfg
index fef7df79ec..0c3ffef4e1 100644
--- a/config/nim.cfg
+++ b/config/nim.cfg
@@ -78,6 +78,7 @@ path="$lib/pure/unidecode"
     gcc.options.linker = "-ldl"
     gcc.cpp.options.linker = "-ldl"
     clang.options.linker = "-ldl"
+    clang.cpp.options.linker = "-ldl"
     tcc.options.linker = "-ldl"
   @end
   @if bsd or haiku: