diff --git a/ccminer.cpp b/ccminer.cpp
index 0dd2e46..7fc3717 100644
--- a/ccminer.cpp
+++ b/ccminer.cpp
@@ -1149,9 +1149,11 @@ static void stratum_gen_work(struct stratum_ctx *sctx, struct work *work)
 			diff_to_target(work->target, sctx->job.diff / (256.0 * opt_difficulty));
 			break;
 		case ALGO_LYRA2:
-        case ALGO_LYRA2v2:
 			diff_to_target(work->target, sctx->job.diff / (128.0 * opt_difficulty));
 			break;
+        case ALGO_LYRA2v2:
+			diff_to_target(work->target, sctx->job.diff / (256.0 * opt_difficulty));
+			break;
 		default:
 			diff_to_target(work->target, sctx->job.diff / opt_difficulty);
 	}