diff --git a/templates/kafka.env.j2 b/templates/kafka.env.j2
index acf899b..1e6102a 100644
--- a/templates/kafka.env.j2
+++ b/templates/kafka.env.j2
@@ -1,6 +1,9 @@
 {% for environment_variable in (kafka_environment_variables | dict2items) %}
 {{ environment_variable.key }}="{{ environment_variable.value }}"
 {% endfor %}
+{% if kafka_heap_opts is defined %}
+KAFKA_HEAP_OPTS="{{ kafka_heap_opts }}"
+{% endif %}
 LOG_DIR="{{ kafka_log_dir }}"
 {% if kafka_jmx_enabled %}
 {% if kafka_jmx_username is defined and kafka_jmx_password is defined %}