diff --git a/nodes/srl/srl.go b/nodes/srl/srl.go
index 0849184b0..10b1c16c0 100644
--- a/nodes/srl/srl.go
+++ b/nodes/srl/srl.go
@@ -398,7 +398,7 @@ func generateSRLTopologyFile(cfg *types.NodeConfig) error {
 	// Use node index as part of a deterministically generated MAC
 	// this ensures that different srl nodes will have different macs for their ports
 	// (for labs up to 4096 nodes)
-        m := fmt.Sprintf("1a:b%1x:%02x:00:00:00", cfg.Index / 256, cfg.Index % 256 )
+	m := fmt.Sprintf("1a:b%1x:%02x:00:00:00", cfg.Index/256, cfg.Index%256)
 	mac := mac{
 		MAC: m,
 	}