diff --git a/src/mem/protocol/MESI_Three_Level-L0.cache b/src/mem/protocol/MESI_Three_Level-L0cache.sm
similarity index 100%
rename from src/mem/protocol/MESI_Three_Level-L0.cache
rename to src/mem/protocol/MESI_Three_Level-L0cache.sm
diff --git a/src/mem/protocol/MESI_Three_Level-L1.cache b/src/mem/protocol/MESI_Three_Level-L1cache.sm
similarity index 100%
rename from src/mem/protocol/MESI_Three_Level-L1.cache
rename to src/mem/protocol/MESI_Three_Level-L1cache.sm
diff --git a/src/mem/protocol/MESI_Three_Level.slicc b/src/mem/protocol/MESI_Three_Level.slicc
index 40b124abc..a24b11c18 100644
--- a/src/mem/protocol/MESI_Three_Level.slicc
+++ b/src/mem/protocol/MESI_Three_Level.slicc
@@ -2,8 +2,8 @@ protocol "MESI_Three_Level";
 include "RubySlicc_interfaces.slicc";
 include "MESI_Two_Level-msg.sm";
 include "MESI_Three_Level-msg.sm";
-include "MESI_Three_Level-L0.cache";
-include "MESI_Three_Level-L1.cache";
+include "MESI_Three_Level-L0cache.sm";
+include "MESI_Three_Level-L1cache.sm";
 include "MESI_Two_Level-L2cache.sm";
 include "MESI_Two_Level-dir.sm";
 include "MESI_Two_Level-dma.sm";