diff --git a/libavformat/tls_schannel.c b/libavformat/tls_schannel.c
index 065dccb020a3512c68eff8be00f3221653e23fec..9f1c08806fe7400b3b276e63a1799efa77e525e4 100644
--- a/libavformat/tls_schannel.c
+++ b/libavformat/tls_schannel.c
@@ -494,7 +494,7 @@ static int tls_read(URLContext *h, uint8_t *buf, int len)
             ret = AVERROR(EAGAIN);
             goto cleanup;
         } else {
-            av_log(h, AV_LOG_ERROR, "Unable to decrypt message\n");
+            av_log(h, AV_LOG_ERROR, "Unable to decrypt message (error 0x%x)\n", (unsigned)sspi_ret);
             ret = AVERROR(EIO);
             goto cleanup;
         }