diff --git a/src/database-redis.cpp b/src/database-redis.cpp
index b086f89..d64064c 100644
--- a/src/database-redis.cpp
+++ b/src/database-redis.cpp
@@ -98,7 +98,7 @@ bool Database_Redis::saveBlock(v3s16 blockpos, std::string &data)
 
 	if (reply->type == REDIS_REPLY_ERROR) {
 		errorstream << "WARNING: saveBlock: saving block " << PP(blockpos)
-			<< "failed" << std::endl;
+			<< " failed: " << reply->str << std::endl;
 		freeReplyObject(reply);
 		return false;
 	}