diff --git a/images/apple/PLASMA-2.1-INST.po b/images/apple/PLASMA-2.1-INST.po
index bcd1d0e..e1902f9 100644
Binary files a/images/apple/PLASMA-2.1-INST.po and b/images/apple/PLASMA-2.1-INST.po differ
diff --git a/src/utilsrc/apple/copy.pla b/src/utilsrc/apple/copy.pla
index db886e2..c3aff26 100644
--- a/src/utilsrc/apple/copy.pla
+++ b/src/utilsrc/apple/copy.pla
@@ -226,12 +226,12 @@ if not except(exit)
                 return
             fin
             fileio:iobufalloc(2) // Reserve two I/O buffers
-            if isule(heapavail, MINBUFSIZE + 4096)
+            if isule(heapavail, MINBUFSIZE + 6144)
                 puts(" No available memory for copy buffer\n")
                 return
             fin
             copysize = MAXBUFSIZE
-            while isult(heapavail, copysize + 4096) // Leave lots of room for recursion
+            while isult(heapavail, copysize + 6144) // Leave lots of room for recursion
                 copysize = copysize - 1024
             loop
             copyrel = heapalloc(copysize + 256)