diff --git a/markup/smartify.go b/markup/smartify.go
index bd7fe1d..6ad28a6 100644
--- a/markup/smartify.go
+++ b/markup/smartify.go
@@ -53,7 +53,7 @@ var smartifyTransforms = []struct {
 	{regexp.MustCompile("(^|[^[:alnum:]])``(.+?)''"), "$1“$2”"},
 	{regexp.MustCompile(`(^|[^[:alnum:]])'`), "$1‘"},
 	{regexp.MustCompile(`'`), "’"},
-	{regexp.MustCompile(`(^|[^[:alnum:]?!])"`), "$1“"},
+	{regexp.MustCompile(`(^|[^[:alnum:]?!\.])"`), "$1“"},
 	{regexp.MustCompile(`"($|[^[:alnum:]])`), "”$1"},
 	{regexp.MustCompile(`\\[‘’]`), "'"}, // undo backslashed replacements
 	{regexp.MustCompile(`\\[“”]`), `"`}, // undo backslashed replacements