diff --git a/src/Makefile.cardinal.mk b/src/Makefile.cardinal.mk
index b2dafad..04f8871 100644
--- a/src/Makefile.cardinal.mk
+++ b/src/Makefile.cardinal.mk
@@ -137,7 +137,7 @@ RACK_EXTRA_LIBS += $(SURGE_DEP_PATH)/libs/fmt/libfmt.a
 endif
 RACK_EXTRA_LIBS += $(SURGE_DEP_PATH)/libs/sqlite-3.23.3/libsqlite.a
 RACK_EXTRA_LIBS += $(SURGE_DEP_PATH)/libs/sst/sst-plugininfra/libsst-plugininfra.a
-ifneq ($(WINDOWS),true)
+ifneq ($(MACOS)$(WINDOWS),true)
 RACK_EXTRA_LIBS += $(SURGE_DEP_PATH)/libs/sst/sst-plugininfra/libs/filesystem/libfilesystem.a
 endif
 RACK_EXTRA_LIBS += $(SURGE_DEP_PATH)/libs/sst/sst-plugininfra/libs/strnatcmp/libstrnatcmp.a