diff --git a/sessionmanager/osipsevent.go b/sessionmanager/osipsevent.go
index d73c156f9..97978f580 100644
--- a/sessionmanager/osipsevent.go
+++ b/sessionmanager/osipsevent.go
@@ -20,7 +20,6 @@ package sessionmanager
 
 import (
 	"encoding/json"
-	"fmt"
 	"strings"
 	"time"