diff --git a/dwarf/to_string.cc b/dwarf/to_string.cc
index bb96b4bef0bd17c39af1b6a3f1627bb2ebd54cb3..69e8984b9242fdbe36f859daf7ee2b0058e20241 100644
--- a/dwarf/to_string.cc
+++ b/dwarf/to_string.cc
@@ -14,6 +14,7 @@ to_string(section_type v)
         case section_type::frame: return "section_type::frame";
         case section_type::info: return "section_type::info";
         case section_type::line: return "section_type::line";
+        case section_type::line_str: return "section_type::line_str";
         case section_type::loc: return "section_type::loc";
         case section_type::macinfo: return "section_type::macinfo";
         case section_type::pubnames: return "section_type::pubnames";