diff --git a/DESCRIPTION b/DESCRIPTION
index 7171daaf..8b8216c2 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: simtrial
 Type: Package
 Title: Clinical Trial Simulation
-Version: 0.4.1.11
+Version: 0.4.1.12
 Authors@R: c(
     person("Keaven", "Anderson", email = "keaven_anderson@merck.com", role = c("aut")),
     person("Yujie", "Zhao", email = "yujie.zhao@merck.com", role =  c("ctb","cre")),
diff --git a/R/summary.R b/R/summary.R
index ce685151..e71a3be1 100644
--- a/R/summary.R
+++ b/R/summary.R
@@ -131,7 +131,7 @@ summary.simtrial_gs_wlr <- function(object,
               dplyr::select(analysis, z, bound) |>
               dplyr::rename(upper_bound = z)
           ) |>
-          dplyr::mutate(cross_upper = -z >= upper_bound)
+          dplyr::mutate(cross_upper = z >= upper_bound)
       )
     } else {
       suppressMessages(
@@ -142,8 +142,8 @@ summary.simtrial_gs_wlr <- function(object,
               tidyr::pivot_wider(values_from = z, names_from = bound) |>
               dplyr::rename(lower_bound = lower, upper_bound = upper)
           ) |>
-          dplyr::mutate(cross_lower = -z <= lower_bound,
-                        cross_upper = -z >= upper_bound)
+          dplyr::mutate(cross_lower = z <= lower_bound,
+                        cross_upper = z >= upper_bound)
       )
     }
 
diff --git a/tests/testthat/test-unvalidated-summary.R b/tests/testthat/test-unvalidated-summary.R
index d637e5a7..77225db7 100644
--- a/tests/testthat/test-unvalidated-summary.R
+++ b/tests/testthat/test-unvalidated-summary.R
@@ -73,7 +73,7 @@ test_that("summary.simtrial_gs_wlr() returns consistent results for one-sided de
   expected <- data.frame(
     analysis = c(1, 2, 3),
     asy_upper_prob = c(0.00014865936645545522, 0.5723215057363614, 0.9000000002116888),
-    sim_upper_prob = rep(NA_real_, 3L),
+    sim_upper_prob = c(NA, 1, NA),
     sim_event = c(97, 305, 405),
     sim_n = c(369.3333333333333, 505, 505),
     sim_time = c(12.877359569828519, 24.990283397668506, 37.20491262038222),
@@ -164,8 +164,8 @@ test_that("summary.simtrial_gs_wlr() returns consistent results for two-sided de
     analysis = c(1, 2, 3),
     asy_upper_prob = c(0.00016250401737420353, 0.6011019363189855, 0.9000000001924918),
     asy_lower_prob = c(0.0007883883873094952, 0.05707064419933058, 0.10004018006137042),
-    sim_upper_prob = rep(NA_real_, 3L),
-    sim_lower_prob = c(NA, 1, NA),
+    sim_upper_prob = c(NA, 0.6666666666666666, 1),
+    sim_lower_prob = rep(NA_real_, 3L),
     sim_event = c(103, 323, 429),
     sim_n = c(366.6666666666667, 535, 535),
     sim_time = c(12.363838412468121, 24.374413483785986, 36.116791896100885),