diff --git a/heka/files/input/logstreamer.toml b/heka/files/input/logstreamer.toml
index 3ed2077..527a19b 100644
--- a/heka/files/input/logstreamer.toml
+++ b/heka/files/input/logstreamer.toml
@@ -5,7 +5,9 @@
 {% if values.priority is defined %}
 priority = {{ values.priority }}
 {% endif %}
+{% if values.decoder is defined %}
 decoder = "{{ values.decoder }}"
+{% endif %}
 {% if values.splitter is defined %}
 splitter = {{ values.splitter }}
 {% endif %}