diff --git a/dlls/secur32/schannel_gnutls.c b/dlls/secur32/schannel_gnutls.c
index ed9bfde09d2..17b4b774286 100644
--- a/dlls/secur32/schannel_gnutls.c
+++ b/dlls/secur32/schannel_gnutls.c
@@ -441,7 +441,7 @@ again:
 
 BOOL schan_imp_allocate_certificate_credentials(schan_credentials *c)
 {
-    int ret = pgnutls_certificate_allocate_credentials((gnutls_certificate_credentials*)&c->credentials);
+    int ret = pgnutls_certificate_allocate_credentials((gnutls_certificate_credentials_t*)&c->credentials);
     if (ret != GNUTLS_E_SUCCESS)
         pgnutls_perror(ret);
     return (ret == GNUTLS_E_SUCCESS);