diff --git a/disassemblers/jvm.json b/disassemblers/jvm.json
index 479ff2b..ea91cda 100644
--- a/disassemblers/jvm.json
+++ b/disassemblers/jvm.json
@@ -49,8 +49,8 @@
             "format": "#{I}"
         },
         {
-            "mask": "areturn",
-            "mnemonic": "1011'0000",
+            "mask": "1011'0000",
+            "mnemonic": "areturn",
             "format": ""
         },
         {
@@ -84,8 +84,8 @@
             "format": ""
         },
         {
-            "mask": "athrow",
-            "mnemonic": "1011'1111",
+            "mask": "1011'1111",
+            "mnemonic": "athrow",
             "format": ""
         },
         {
@@ -1042,4 +1042,4 @@
             "format": ""
         }
     ]
-}
\ No newline at end of file
+}