diff --git a/crypto/engine/eng_list.c b/crypto/engine/eng_list.c
index bd511944ba..fa2ab9732a 100644
--- a/crypto/engine/eng_list.c
+++ b/crypto/engine/eng_list.c
@@ -412,6 +412,7 @@ ENGINE *ENGINE_by_id(const char *id)
 		return iterator;
 		}
 notfound:
+	ENGINE_free(iterator);
 	ENGINEerr(ENGINE_F_ENGINE_BY_ID,ENGINE_R_NO_SUCH_ENGINE);
 	ERR_add_error_data(2, "id=", id);
 	return NULL;