diff --git a/Makefile b/Makefile
index 1ea5803..1cd0af7 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ obj := $(src:%=build/%.o)
 all: $(lib)
 
 $(lib): $(obj)
-	ar rcs $@ $^
+	$(target)-ar rcs $@ $^
 
 build/%.c.o: %.c | build/
 	$(target)-gcc -c $< -o $@ $(cflags)