diff --git a/Elf2Mac/Object.cc b/Elf2Mac/Object.cc
index 7feba0a40b..197d23aa03 100644
--- a/Elf2Mac/Object.cc
+++ b/Elf2Mac/Object.cc
@@ -219,6 +219,8 @@ void Object::SingleSegmentApp(string output)
     file.creator = ResType("????");
     file.type = ResType("APPL");
 
+    file.data = "Built using Retro68.";
+
     file.write(output);
 }
 
@@ -402,5 +404,7 @@ void Object::MultiSegmentApp(string output, SegmentMap& segmentMap)
     file.creator = ResType("????");
     file.type = ResType("APPL");
 
+    file.data = "Built using Retro68,";
+
     file.write(output);
 }