diff --git a/gemini.go b/gemini.go
index caffb1b..6b419cc 100644
--- a/gemini.go
+++ b/gemini.go
@@ -8,7 +8,6 @@ var crlf = []byte("\r\n")
 
 // Errors.
 var (
-	ErrInvalidURL      = errors.New("gemini: invalid URL")
 	ErrInvalidRequest  = errors.New("gemini: invalid request")
 	ErrInvalidResponse = errors.New("gemini: invalid response")