diff --git a/src/minify.cpp b/src/minify.cpp
index 4c5295e..7c7168d 100644
--- a/src/minify.cpp
+++ b/src/minify.cpp
@@ -70,7 +70,7 @@ bool r_replace_var(_obj* in, strmap_t* varmap)
 }
 
 const char* escaped_char=" \\\t!\"()|&*?~><#";
-const char* doublequote_escape_char="  \t'|&\\*?~><#";
+const char* doublequote_escape_char="  \t'|&\\*()?~><#";
 uint32_t count_escape_chars(std::string const& in, bool doublequote)
 {
   uint32_t r=0;