diff --git a/test/cases/040_packages/004_dm-crypt/001_luks/test.sh b/test/cases/040_packages/004_dm-crypt/001_luks/test.sh
index 89cdafe7e..e63fdd1dd 100644
--- a/test/cases/040_packages/004_dm-crypt/001_luks/test.sh
+++ b/test/cases/040_packages/004_dm-crypt/001_luks/test.sh
@@ -19,7 +19,7 @@ trap clean_up EXIT
 
 # Test code goes here
 linuxkit build -format kernel+initrd -name ${NAME} test.yml
-RESULT="$(linuxkit run -disk file=${DISK},size=8M ${NAME})"
+RESULT="$(linuxkit run -disk file=${DISK},size=20M ${NAME})"
 echo "${RESULT}"
 echo "${RESULT}" | grep -q "suite PASSED"