diff --git a/Makefile b/Makefile
index e95f681..c9fa133 100644
--- a/Makefile
+++ b/Makefile
@@ -29,8 +29,8 @@ main.elf: $(OBJ) | words.txt
 test.elf: ordle.cc test/test.cc
 	@$(CXX) $(CXXFLAGS) $^ -o $@
 
-words.txt:
-	cat /usr/share/dict/words > words.txt
+words.txt: /usr/share/dict/words
+	cat $< > $@
 
 %.o:%.cc
 	@echo "Building $@"
@@ -50,4 +50,4 @@ format:
 clean:
 	rm -f *.o *.elf words.txt
 
-.PHONY: clean all lint clang-tidy cppcheck format words.txt
+.PHONY: clean all lint clang-tidy cppcheck format