diff --git a/util/Makefile.objs b/util/Makefile.objs
index 38178201ff65..68af3cd5e9cf 100644
--- a/util/Makefile.objs
+++ b/util/Makefile.objs
@@ -3,7 +3,6 @@ util-obj-y += bufferiszero.o
 util-obj-y += lockcnt.o
 util-obj-y += aiocb.o async.o aio-wait.o thread-pool.o qemu-timer.o
 util-obj-y += main-loop.o iohandler.o
-main-loop.o-cflags := $(SLIRP_CFLAGS)
 util-obj-$(call lnot,$(CONFIG_ATOMIC64)) += atomic64.o
 util-obj-$(CONFIG_POSIX) += aio-posix.o
 util-obj-$(CONFIG_POSIX) += compatfd.o