1 files changed, 5 insertions, 2 deletions
diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 034c937b99..93136a0b79 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -39,8 +39,7 @@ enum
  *  All flags are intended to be soft forks: the set of acceptable scripts under
  *  flags (A | B) is a subset of the acceptable scripts under flag (A).
  */
-enum
-{
+enum : uint32_t {
     SCRIPT_VERIFY_NONE      = 0,
 
     // Evaluate P2SH subscripts (BIP16).
@@ -140,6 +139,10 @@ enum
 
     // Making unknown public key versions (in BIP 342 scripts) non-standard
     SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_PUBKEYTYPE = (1U << 20),
+
+    // Constants to point to the highest flag in use. Add new flags above this line.
+    //
+    SCRIPT_VERIFY_END_MARKER
 };
 
 bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror);