diff --git a/src/CompilerSupport/filesystem.h b/src/CompilerSupport/filesystem.h
index b85463d..2070797 100644
--- a/src/CompilerSupport/filesystem.h
+++ b/src/CompilerSupport/filesystem.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#if !__APPLE__ /* don't use built-in filesystem implementation so we can support older macOS versions */ && \
+#if !__APPLE__ && !__FreeBSD__ /* don't use built-in filesystem implementation so we can support older macOS and FreeBSD */ && \
 defined(__cplusplus) && __cplusplus >= 201703L && defined(__has_include) && __has_include(<filesystem>)
     #include <filesystem>
     namespace fs = std::filesystem;