diff --git a/third-party/zen-pmu-workaround/Makefile b/third-party/zen-pmu-workaround/Makefile
index 04afb1fbf2c..33b3f678d02 100644
--- a/third-party/zen-pmu-workaround/Makefile
+++ b/third-party/zen-pmu-workaround/Makefile
@@ -3,7 +3,7 @@ obj-m = zen_workaround.o
 all:
 	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
 
-signed: all
+signed: $(obj-m)
 	sudo /lib/modules/$(shell uname -r)/build/scripts/sign-file sha512 /var/lib/shim-signed/mok/MOK.priv /var/lib/shim-signed/mok/MOK.der zen_workaround.ko
 
 clean: