diff --git a/godoc/util/util.go b/godoc/util/util.go
index feedb7688a..c08ca785fe 100644
--- a/godoc/util/util.go
+++ b/godoc/util/util.go
@@ -59,6 +59,7 @@ func IsText(s []byte) bool {
 var textExt = map[string]bool{
 	".css": false, // must be served raw
 	".js":  false, // must be served raw
+	".svg": false, // must be served raw
 }
 
 // IsTextFile reports whether the file has a known extension indicating