diff --git a/modfile/read.go b/modfile/read.go
index 70947ee..a503bc2 100644
--- a/modfile/read.go
+++ b/modfile/read.go
@@ -494,7 +494,7 @@
 	in.token.endPos = in.pos
 }
 
-// peek returns the kind of the the next token returned by lex.
+// peek returns the kind of the next token returned by lex.
 func (in *input) peek() tokenKind {
 	return in.token.kind
 }