diff --git a/Makefile b/Makefile
index 4ff6807..b3d5b41 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,6 @@ bsmap: $(OBJS1)
 	(cd samtools; make)
 	(cd gzstream; make)
 	$(CXX) $(CXXFLAGS) $^ -o $@ $(THREAD) -lbam -lz -lgzstream
-	rm -f *.o
 
 clean:
 	rm -f *.o *~ bsmap