diff --git a/go/type.go b/go/type.go
index 50a1fcc..8971f41 100644
--- a/go/type.go
+++ b/go/type.go
@@ -180,10 +180,10 @@ func NewStringReader(lines []string) *StringReader {
 func (self *StringReader) __init__(lines []string) {
 	size := 0
 	for _, l := range lines {
-		size += len(l)
+		size += len(l) + 1 // +1 for EOL
 	}
 	self.buf = make([]string, 0, size)
-	self.pos = make([]pos, 0, size)
+	self.pos = make([]pos, 0, size+1) // +1 for EOF
 	var lnum = 0
 	for lnum < len(lines) {
 		var col = 0