# MutantHub mutant #2883: Relational operator mutation at keyagg_impl.h:237
# Repository: bitcoin-core/secp256k1 @ a39093de15345a330fc8acbd09515fd150853bc8
# File: src/modules/musig/keyagg_impl.h:237-237
# Review: APPROVED; outcome: KILLED
--- a/src/modules/musig/keyagg_impl.h
+++ b/src/modules/musig/keyagg_impl.h
@@ -237,1 +237,1 @@
-    if (output_pubkey != NULL) {
+    if (output_pubkey == NULL) {