diff --git a/Makefile b/Makefile
index 17817e2..b0f2d50 100644
--- a/Makefile
+++ b/Makefile
@@ -32,13 +32,15 @@ default: sudoku eval
 sudoku: $(OBJ)
 	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJ) -o $@
 
+eval: eval.c ds.h
+	$(CC) $(CFLAGS) $(LDFLAGS) eval.c -o $@
+
 clean:
 	rm -f sudoku eval genlut *.o lut.c
 
 lut.c: genlut
 	./genlut > $@
 
-eval.o: ds.h
 main.o: sud.h solve.h ds.h
 sud.o: sud.h lut.h
 solve.o: solve.h lut.h