diff --git a/config.h.sample b/config.h.sample
index 200f330..3db09a7 100644
--- a/config.h.sample
+++ b/config.h.sample
@@ -41,7 +41,7 @@
 #define SYSTEM_NAME "internal-hostname"
 
 // The mode this system should run in.  See consts.h for the available values.
-#define SYSTEM_MODE MODE_PULL
+#define SYSTEM_MODE MODE_PROM_PULL
 
 // If you have a DHT temperature+humidity sensor of this type will be used,
 // remove the #undef line and uncomment one of DHT11 or DHT22.  You also have
diff --git a/consts.h b/consts.h
index 4b7496e..1709e84 100644
--- a/consts.h
+++ b/consts.h
@@ -27,3 +27,6 @@
 // Prometheus Pull mode.  A Prometheus instance has to be configured to
 // regularly pull values from the station.
 #define MODE_PROM_PULL 1
+
+// NOTE: Bit 1 (ie. value of 2) is reserved for MODE_PROM_PUSH when it gets
+// implemented