diff --git a/src/nix-find-roots/local.mk b/src/nix-find-roots/local.mk
index a1ca2c9bf..ec129a203 100644
--- a/src/nix-find-roots/local.mk
+++ b/src/nix-find-roots/local.mk
@@ -5,3 +5,7 @@ nix-find-roots_DIR := $(d)
 nix-find-roots_SOURCES := $(wildcard $(d)/*.cc)
 
 nix-find-roots_INSTALL_DIR := $(libexecdir)/nix
+
+ifdef HOST_DARWIN
+	nix-find-roots_LDFLAGS = -lc++fs
+endif