diff --git a/dlls/crypt32/crypt32.spec b/dlls/crypt32/crypt32.spec
index 8beff93c0f2..c820612d2a7 100644
--- a/dlls/crypt32/crypt32.spec
+++ b/dlls/crypt32/crypt32.spec
@@ -186,7 +186,7 @@
 @ stdcall CryptVerifyCertificateSignature(long long ptr long ptr)
 @ stdcall CryptVerifyCertificateSignatureEx(long long long ptr long ptr long ptr)
 @ stdcall CryptVerifyDetachedMessageHash(ptr ptr long long ptr ptr ptr ptr)
-@ stub CryptVerifyDetachedMessageSignature
+@ stdcall CryptVerifyDetachedMessageSignature(ptr long ptr long long ptr ptr ptr)
 @ stdcall CryptVerifyMessageHash(ptr ptr long ptr ptr ptr ptr)
 @ stdcall CryptVerifyMessageSignature(ptr long ptr long ptr ptr ptr)
 @ stub CryptVerifyMessageSignatureWithKey
diff --git a/dlls/crypt32/message.c b/dlls/crypt32/message.c
index b4198662c6e..ee7c5ba5eb0 100644
--- a/dlls/crypt32/message.c
+++ b/dlls/crypt32/message.c
@@ -60,6 +60,18 @@ LONG WINAPI CryptGetMessageSignerCount(DWORD dwMsgEncodingType,
     return count;
 }
 
+BOOL WINAPI CryptVerifyDetachedMessageSignature(
+ PCRYPT_VERIFY_MESSAGE_PARA pVerifyPara, DWORD dwSignerIndex,
+ const BYTE *pbDetachedSignBlob, DWORD cbDetachedSignBlob, DWORD cToBeSigned,
+ const BYTE *rgpbToBeSigned[], DWORD rgcbToBeSigned[],
+ PCCERT_CONTEXT *ppSignerCert)
+{
+    FIXME("(%p, %d, %p, %d, %d, %p, %p, %p): stub\n", pVerifyPara, dwSignerIndex,
+     pbDetachedSignBlob, cbDetachedSignBlob, cToBeSigned, rgpbToBeSigned,
+     rgcbToBeSigned, ppSignerCert);
+    return FALSE;
+}
+
 static BOOL CRYPT_CopyParam(void *pvData, DWORD *pcbData, const void *src,
  DWORD len)
 {