diff --git a/mclevel.py b/mclevel.py
index 4873d16..76ce410 100644
--- a/mclevel.py
+++ b/mclevel.py
@@ -1373,8 +1373,9 @@ class InfdevChunk(MCLevel):
         self.world.chunkDidCompress(self);
     
     def decompress(self):
-        MCLevel.decompress(self);
-        self.world.chunkDidDecompress(self);
+        if not self in self.world.decompressedChunks:
+            MCLevel.decompress(self);
+            self.world.chunkDidDecompress(self);
         
         
     def __str__(self):