diff --git a/drivers/net/wireguard/Makefile b/drivers/net/wireguard/Makefile
index fc52b2cb500b3d9d235ad8aa459aab7a881ebc5b..dbe1f8514efc3df1175762c62d71f88fe6327835 100644
--- a/drivers/net/wireguard/Makefile
+++ b/drivers/net/wireguard/Makefile
@@ -1,5 +1,4 @@
-ccflags-y := -O3
-ccflags-y += -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt'
+ccflags-y := -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt'
 ccflags-$(CONFIG_WIREGUARD_DEBUG) += -DDEBUG
 wireguard-y := main.o
 wireguard-y += noise.o