diff --git a/loopy/buffer.py b/loopy/buffer.py
index d91ec1a9ab912f1e3300c450bc4accda6cbf6f8d..70f8a0e297bb870635541f60506091bc29bf8ecc 100644
--- a/loopy/buffer.py
+++ b/loopy/buffer.py
@@ -123,7 +123,7 @@ class ArrayAccessReplacer(RuleAwareIdentityMapper):
 # }}}
 
 
-buffer_array_cache = PersistentDict("loopy-buffer-array-cachee"+DATA_MODEL_VERSION,
+buffer_array_cache = PersistentDict("loopy-buffer-array-cache-"+DATA_MODEL_VERSION,
         key_builder=LoopyKeyBuilder())