diff --git a/cmd/ollie-9p-mount/main.go b/cmd/ollie-9p-mount/main.go
index bf2e81e..665cb68 100644
--- a/cmd/ollie-9p-mount/main.go
+++ b/cmd/ollie-9p-mount/main.go
@@ -9,7 +9,7 @@
 //
 //	ollie-9p-mount [-u uname] [-s service] [-addr address] <mountpoint>
 //
-// If -u is not given, $OLLIE_SESSION_ID is used.
+// If -u is not given, $OLLIE_UNAME is used.
 package main
 
 import (
@@ -42,10 +42,10 @@ func main() {
 
 	uname := *userFlag
 	if uname == "" {
-		uname = os.Getenv("OLLIE_SESSION_ID")
+		uname = os.Getenv("OLLIE_UNAME")
 	}
 	if uname == "" {
-		fmt.Fprintf(os.Stderr, "ollie-9p-mount: no uname (-u or $OLLIE_SESSION_ID)\n")
+		fmt.Fprintf(os.Stderr, "ollie-9p-mount: no uname (-u or $OLLIE_UNAME)\n")
 		os.Exit(1)
 	}