diff --git a/src/example/bench.go b/src/example/bench.go
index 2abae23b..9137ac0b 100644
--- a/src/example/bench.go
+++ b/src/example/bench.go
@@ -11,7 +11,6 @@ import (
 	_ "context/tcp"
 	_ "context/web"
 
-	_ "context/gdb"
 	_ "context/lex"
 	_ "context/log"
 	_ "context/yac"