diff --git a/prometheus/map.jinja b/prometheus/map.jinja
index 419a833..664d62d 100644
--- a/prometheus/map.jinja
+++ b/prometheus/map.jinja
@@ -35,7 +35,13 @@
 {%-   if args|length > 0 %}
 {%-     for k,v in args -%}
 {%-       if not k or not v %}{% continue %}{% endif -%}
+{%-         if v == True -%}
+          --{{ k }}
+{%-         elif v == False -%}
+          --no-{{ k }}
+{%-         else -%}
           --{{ k }}={{ v }}
+{%-         endif -%}
 {%-       if not loop.last %} {% endif -%}
 {%-     endfor -%}
 {%-   endif -%}