diff --git a/Ext4Crypt.cpp b/Ext4Crypt.cpp
index 4e768b3..0063bef 100644
--- a/Ext4Crypt.cpp
+++ b/Ext4Crypt.cpp
@@ -75,8 +75,7 @@
 // Map user ids to key references
 std::map<userid_t, std::string> s_de_key_raw_refs;
 std::map<userid_t, std::string> s_ce_key_raw_refs;
-// TODO abolish this map. Keys should not be long-lived in user memory, only kernel memory.
-// See b/26948053
+// TODO abolish this map, per b/26948053
 std::map<userid_t, std::string> s_ce_keys;
 
 // ext4enc:TODO get this const from somewhere good