diff --git a/Makefile b/Makefile
index 6cd6c18a0b..911454c681 100644
--- a/Makefile
+++ b/Makefile
@@ -41,7 +41,7 @@ test-vpp: checkiso
 .PHONY: testc
 .ONESHELL:
 testc: checkiso
-	scripts/check-qemu-install --debug --configd --cpu 4 --memory 8 --configtest build/live-image-amd64.hybrid.iso $(filter-out $@,$(MAKECMDGOALS))
+	scripts/check-qemu-install --debug --configd --cpu 2 --memory 7 --configtest build/live-image-amd64.hybrid.iso $(filter-out $@,$(MAKECMDGOALS))
 
 .PHONY: testraid
 .ONESHELL: