diff --git a/src/p_mach.cpp b/src/p_mach.cpp
index c56fbc63..83e19fe0 100644
--- a/src/p_mach.cpp
+++ b/src/p_mach.cpp
@@ -770,11 +770,13 @@ int PackMachFat::canUnpack()
             PackMachI386 packer(fi);
             if (!packer.canUnpack())
                 return 0;
+            ph.format = packer.getFormat(); // FIXME: copy entire PackHeader
         } break;
         case PackMachFat::CPU_TYPE_POWERPC: {
             PackMachPPC32 packer(fi);
             if (!packer.canUnpack())
                 return 0;
+            ph.format = packer.getFormat(); // FIXME: copy entire PackHeader
         } break;
         }  // switch cputype
     }
@@ -796,10 +798,6 @@ void PackMachFat::list()
     assert(false);
 }
 
-void PackMachFat::fileInfo()
-{
-    assert(false);
-}
 /*
 vi:ts=4:et
 */
diff --git a/src/p_mach.h b/src/p_mach.h
index 5b13c9d4..5ab3b2a4 100644
--- a/src/p_mach.h
+++ b/src/p_mach.h
@@ -498,7 +498,6 @@ protected:
     virtual void pack(OutputFile *fo);
     virtual void unpack(OutputFile *fo);
     virtual void list();
-    virtual void fileInfo();
 
 public:
     virtual bool canPack();