diff --git a/eth/common/eth_hash.nim b/eth/common/eth_hash.nim
index a94bcb3..a9583bd 100644
--- a/eth/common/eth_hash.nim
+++ b/eth/common/eth_hash.nim
@@ -30,5 +30,11 @@ template keccakHash*(v: Address): Hash32 {.deprecated.} =
 
 from nimcrypto/hash import MDigest
 
-converter toMDigest*(v: Hash32): MDigest[256] {.deprecated.} =
+# TODO https://github.com/nim-lang/Nim/issues/24241
+when (NimMajor, NimMinor) >= (2, 12) or defined(ethDigestConverterWarning):
+  {.pragma: convdeprecated, deprecated.}
+else:
+  {.pragma: convdeprecated.}
+
+converter toMDigest*(v: Hash32): MDigest[256] {.convdeprecated.} =
   MDigest[256](data: v.data)