diff --git a/src/NanoVNASaver/Hardware/VNA.py b/src/NanoVNASaver/Hardware/VNA.py
index 602fb0e..7006cf3 100644
--- a/src/NanoVNASaver/Hardware/VNA.py
+++ b/src/NanoVNASaver/Hardware/VNA.py
@@ -55,7 +55,7 @@ class VNA:
     name = "VNA"
     valid_datapoints = (101, 51, 11)
     wait = 0.05
-    SN = "NOT SUPORT"
+    SN = "NOT SUPPORTED"
     sweep_points_max = 101
     sweep_points_min = 11