diff --git a/scripts/start-finalExec b/scripts/start-finalExec
index 6020456a..98148748 100755
--- a/scripts/start-finalExec
+++ b/scripts/start-finalExec
@@ -110,9 +110,9 @@ if [[ ${GUI,,} = false ]]; then
   EXTRA_ARGS+=" nogui"
 fi
 
-: "${MEMORY:=1G}"
-: "${INIT_MEMORY:=${MEMORY}}"
-: "${MAX_MEMORY:=${MEMORY}}"
+: "${MEMORY=1G}"
+: "${INIT_MEMORY=${MEMORY}}"
+: "${MAX_MEMORY=${MEMORY}}"
 
 expandedDOpts=
 if [ -n "$JVM_DD_OPTS" ]; then