1 files changed, 9 insertions, 2 deletions
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index bcfbcccc2..baa1e46ec 100644
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -258,12 +258,19 @@ std::vector<std::string> debListParser::AvailableDescriptionLanguages()
 {
    std::vector<std::string> const understood = APT::Configuration::getLanguages();
    std::vector<std::string> avail;
+   static constexpr int prefixLen = 12;
+   static constexpr int avgLanguageLen = 5;
+   std::string tagname;
+
+   tagname.reserve(prefixLen + avgLanguageLen);
+   tagname.assign("Description-");
    if (Section.Exists("Description") == true)
       avail.push_back("");
    for (std::vector<std::string>::const_iterator lang = understood.begin(); lang != understood.end(); ++lang)
    {
-      std::string const tagname = "Description-" + *lang;
-      if (Section.Exists(tagname.c_str()) == true)
+      tagname.resize(prefixLen);
+      tagname.append(*lang);
+      if (Section.Exists(tagname) == true)
 	 avail.push_back(*lang);
    }
    return avail;