diff --git a/make-linux.mk b/make-linux.mk
index 8b81bdb..3db48b1 100644
--- a/make-linux.mk
+++ b/make-linux.mk
@@ -209,7 +209,7 @@ static_lib: picotcp $(ZTO_OBJS)
 	@mkdir -p $(BUILD) obj
 	$(CXX) $(CXXFLAGS) $(LIBZT_FILES) $(STACK_DRIVER_FILES) -c
 	mv *.o obj
-	#mv ext/picotcp/build/lib/*.o obj
+	mv ext/picotcp/build/lib/*.o obj
 	mv ext/picotcp/build/modules/*.o obj
 	ar rcs -o $(STATIC_LIB) obj/*.o $(STACK_LIB)
 endif