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-rw-r--r--erts/emulator/beam/erl_binary.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h
index 46653a8580..7dfd0c273a 100644
--- a/erts/emulator/beam/erl_binary.h
+++ b/erts/emulator/beam/erl_binary.h
@@ -146,9 +146,7 @@ typedef union {
/* A "magic" binary flag */
#define BIN_FLAG_MAGIC 1
-#define BIN_FLAG_USR1 2 /* Reserved for use by different modules too mark */
-#define BIN_FLAG_USR2 4 /* certain binaries as special (used by ets) */
-#define BIN_FLAG_DRV 8
+#define BIN_FLAG_DRV 2
#endif /* ERL_BINARY_H__TYPES__ */