diff --git a/tocalls.yaml b/tocalls.yaml
index c13e571..ab753f0 100644
--- a/tocalls.yaml
+++ b/tocalls.yaml
@@ -734,7 +734,7 @@ tocalls:
    model: APRS-Go
    class: app
 
- - tocall: APGRWO
+ - tocall: APGRW?
    vendor: Chris Snell, NW5W
    model: NW5W Graywolf
    class: software