diff --git a/decode.c b/decode.c
index 2c920be..216653a 100644
--- a/decode.c
+++ b/decode.c
@@ -78,14 +78,14 @@ enum PrefixSet
     PREFIX_REP = FD_FLAG_REP,
     PREFIX_REPNZ = FD_FLAG_REPNZ,
     PREFIX_REX = FD_FLAG_REX,
-    PREFIX_VEXL = FD_FLAG_VEXL,
     PREFIX_OPSZ = 1 << 13,
     PREFIX_ADDRSZ = 1 << 14,
     PREFIX_REXB = 1 << 15,
     PREFIX_REXX = 1 << 16,
     PREFIX_REXR = 1 << 17,
     PREFIX_REXW = 1 << 18,
-    PREFIX_VEX = 1 << 21,
+    PREFIX_VEXL = 1 << 19,
+    PREFIX_VEX = 1 << 20,
 };
 
 typedef enum PrefixSet PrefixSet;
diff --git a/fadec.h b/fadec.h
index 3fae6fe..1516f4b 100644
--- a/fadec.h
+++ b/fadec.h
@@ -38,7 +38,6 @@ enum {
     FD_FLAG_REP = 1 << 1,
     FD_FLAG_REPNZ = 1 << 2,
     FD_FLAG_REX = 1 << 3,
-    FD_FLAG_VEXL = 1 << 4,
     FD_FLAG_64 = 1 << 7,
 };
 
@@ -124,8 +123,6 @@ void fd_format(const FdInstr* instr, char* buf, size_t len);
 /** Indicates whether the instruction was encoded with a LOCK prefix. Note that
  * it is not checked whether the LOCK prefix is valid for the instruction. **/
 #define FD_HAS_LOCK(instr) ((instr)->flags & FD_FLAG_LOCK)
-/** Indicates whether the instruction was encoded with a VEX.L prefix. **/
-#define FD_HAS_VEXL(instr) ((instr)->flags & FD_FLAG_VEXL)
 #define FD_IS64(instr) ((instr)->flags & FD_FLAG_64)
 
 /** Gets the type of an operand at the given index. **/