diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h
index 9dc2d9b40df5..0d236ca686b5 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h
@@ -29,7 +29,8 @@ class DWARFDebugLine {
 public:
   // FileNameEntry
   struct FileNameEntry {
-    FileNameEntry() : name(nullptr), dir_idx(0), mod_time(0), length(0) {}
+    FileNameEntry()
+        : name(nullptr), dir_idx(0), mod_time(0), length(0), checksum() {}
 
     const char *name;
     dw_sleb128_t dir_idx;