diff --git a/csminer.go b/csminer.go
index 7736521..7217d10 100644
--- a/csminer.go
+++ b/csminer.go
@@ -28,6 +28,7 @@ var (
 	exclude = flag.String("exclude", "", "pause mining during these hours, e.g. -exclude=11-16 will pause mining between 11am and 4pm")
 	config  = flag.String("config", "", "advanced pool configuration options, e.g. start_diff=1000;donate=1.0")
 	wallet  = flag.String("wallet", "", "your wallet id. only specify this when establishing a new username, or specifying a 'secure' config change such as a change in donation amount")
+	dev     = flag.Bool("dev", false, "whether to connect to dev server")
 )
 
 func MultiMain(s MachineStater, agent string) {
@@ -127,6 +128,7 @@ func MultiMain(s MachineStater, agent string) {
 		ExcludeHrEnd:   hr2,
 		UseTLS:         *tls,
 		AdvancedConfig: *config,
+		Dev:            *dev,
 	}
 	if err = Mine(&config); err != nil {
 		crylog.Fatal("Miner failed:", err)
diff --git a/miner.go b/miner.go
index d568890..672b6dc 100644
--- a/miner.go
+++ b/miner.go
@@ -69,6 +69,9 @@ func Mine(c *MinerConfig) error {
 
 	sleepSec := 3 * time.Second // time to sleep if connection attempt fails
 	for {
+		if c.Dev {
+			crylog.Warn("\n\n=================\n\nCONNECTING TO DEV SERVER -- THIS IS FOR TESTING ONLY\n\n=================\n\n")
+		}
 		plResp := minerlib.PoolLogin(&minerlib.PoolLoginArgs{
 			Username: c.Username,
 			RigID:    c.RigID,