diff --git a/Source/DebugEngine.DebugInfo.pas b/Source/DebugEngine.DebugInfo.pas
index bdecf54..b1694e5 100644
--- a/Source/DebugEngine.DebugInfo.pas
+++ b/Source/DebugEngine.DebugInfo.pas
@@ -129,7 +129,7 @@ interface
 
   TSMapSourceLocation = packed record
     SegId: Byte;
-    NumberOfLineNumbers: Word;
+    NumberOfLineNumbers: DWORD;
     SourceLocationLength: Word;
     SourceLocation: array [0 .. 0] of SMapChar;
   end;