diff --git a/Makefile b/Makefile
index c8fe12f..b56b201 100644
--- a/Makefile
+++ b/Makefile
@@ -46,7 +46,7 @@ arch/$(ARCH)/irq_handler.o:arch/$(ARCH)/irq_handler.c
 
 test: CFLAGS += -DRUN_TEST
 test: clean kernel
-	qemu-system-x86_64 -kernel kernel -serial stdio
+	qemu-system-x86_64 -kernel kernel -serial stdio -m 32M
 
 run:kernel
 	qemu-system-x86_64 -kernel $<